Revealing anion chemistry above 3V in Li-ion capacitors
Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Althou...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kato, Keiko [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch - Zhang, Lei ELSEVIER, 2018, the journal of the International Society of Electrochemistry (ISE), New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:324 ; year:2019 ; day:20 ; month:11 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.electacta.2019.134871 |
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ELV048167320 |
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| 520 | |a Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. | ||
| 520 | |a Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. | ||
| 650 | 7 | |a Li-ion capacitors |2 Elsevier | |
| 650 | 7 | |a Anion chemistry |2 Elsevier | |
| 650 | 7 | |a Hybrid capacitors |2 Elsevier | |
| 650 | 7 | |a Asymmetric capacitors |2 Elsevier | |
| 650 | 7 | |a Organic electrolytes |2 Elsevier | |
| 700 | 1 | |a Rodrigues, Marco-Tulio F. |4 oth | |
| 700 | 1 | |a Babu, Ganguli |4 oth | |
| 700 | 1 | |a Ajayan, Pulickel M. |4 oth | |
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10.1016/j.electacta.2019.134871 doi GBV00000000000780.pica (DE-627)ELV048167320 (ELSEVIER)S0013-4686(19)31742-6 DE-627 ger DE-627 rakwb eng 610 VZ 44.00 bkl Kato, Keiko verfasserin aut Revealing anion chemistry above 3V in Li-ion capacitors 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Li-ion capacitors Elsevier Anion chemistry Elsevier Hybrid capacitors Elsevier Asymmetric capacitors Elsevier Organic electrolytes Elsevier Rodrigues, Marco-Tulio F. oth Babu, Ganguli oth Ajayan, Pulickel M. oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:324 year:2019 day:20 month:11 pages:0 https://doi.org/10.1016/j.electacta.2019.134871 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 324 2019 20 1120 0 |
| spelling |
10.1016/j.electacta.2019.134871 doi GBV00000000000780.pica (DE-627)ELV048167320 (ELSEVIER)S0013-4686(19)31742-6 DE-627 ger DE-627 rakwb eng 610 VZ 44.00 bkl Kato, Keiko verfasserin aut Revealing anion chemistry above 3V in Li-ion capacitors 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Li-ion capacitors Elsevier Anion chemistry Elsevier Hybrid capacitors Elsevier Asymmetric capacitors Elsevier Organic electrolytes Elsevier Rodrigues, Marco-Tulio F. oth Babu, Ganguli oth Ajayan, Pulickel M. oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:324 year:2019 day:20 month:11 pages:0 https://doi.org/10.1016/j.electacta.2019.134871 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 324 2019 20 1120 0 |
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10.1016/j.electacta.2019.134871 doi GBV00000000000780.pica (DE-627)ELV048167320 (ELSEVIER)S0013-4686(19)31742-6 DE-627 ger DE-627 rakwb eng 610 VZ 44.00 bkl Kato, Keiko verfasserin aut Revealing anion chemistry above 3V in Li-ion capacitors 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Li-ion capacitors Elsevier Anion chemistry Elsevier Hybrid capacitors Elsevier Asymmetric capacitors Elsevier Organic electrolytes Elsevier Rodrigues, Marco-Tulio F. oth Babu, Ganguli oth Ajayan, Pulickel M. oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:324 year:2019 day:20 month:11 pages:0 https://doi.org/10.1016/j.electacta.2019.134871 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 324 2019 20 1120 0 |
| allfieldsGer |
10.1016/j.electacta.2019.134871 doi GBV00000000000780.pica (DE-627)ELV048167320 (ELSEVIER)S0013-4686(19)31742-6 DE-627 ger DE-627 rakwb eng 610 VZ 44.00 bkl Kato, Keiko verfasserin aut Revealing anion chemistry above 3V in Li-ion capacitors 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Li-ion capacitors Elsevier Anion chemistry Elsevier Hybrid capacitors Elsevier Asymmetric capacitors Elsevier Organic electrolytes Elsevier Rodrigues, Marco-Tulio F. oth Babu, Ganguli oth Ajayan, Pulickel M. oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:324 year:2019 day:20 month:11 pages:0 https://doi.org/10.1016/j.electacta.2019.134871 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 324 2019 20 1120 0 |
| allfieldsSound |
10.1016/j.electacta.2019.134871 doi GBV00000000000780.pica (DE-627)ELV048167320 (ELSEVIER)S0013-4686(19)31742-6 DE-627 ger DE-627 rakwb eng 610 VZ 44.00 bkl Kato, Keiko verfasserin aut Revealing anion chemistry above 3V in Li-ion capacitors 2019transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. Li-ion capacitors Elsevier Anion chemistry Elsevier Hybrid capacitors Elsevier Asymmetric capacitors Elsevier Organic electrolytes Elsevier Rodrigues, Marco-Tulio F. oth Babu, Ganguli oth Ajayan, Pulickel M. oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:324 year:2019 day:20 month:11 pages:0 https://doi.org/10.1016/j.electacta.2019.134871 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 324 2019 20 1120 0 |
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English |
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Enthalten in Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch New York, NY [u.a.] volume:324 year:2019 day:20 month:11 pages:0 |
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Enthalten in Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch New York, NY [u.a.] volume:324 year:2019 day:20 month:11 pages:0 |
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Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV048167320</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230626021327.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">191023s2019 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.electacta.2019.134871</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">GBV00000000000780.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV048167320</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0013-4686(19)31742-6</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">610</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">44.00</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Kato, Keiko</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Revealing anion chemistry above 3V in Li-ion capacitors</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019transfer abstract</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. 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Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch |
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Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch |
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revealing anion chemistry above 3v in li-ion capacitors |
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Revealing anion chemistry above 3V in Li-ion capacitors |
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Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. |
| abstractGer |
Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. |
| abstract_unstemmed |
Lithium ion capacitors (LIC) are capable of delivering higher energy densities than supercapacitors due to their hybrid charge storage mechanism in which Li-ions are stored via Faradaic reactions in negative electrodes and anions are adsorbed via non-Faradaic reactions on positive electrodes. Although there have been concerted efforts to increase the energy and power densities of these devices by engineering the electrodes, little attention has been paid to the critical role of the electrolyte. Here, we investigated the influence of electrolytes on LIC performance by exploring Li-salts with different anions. The individual anionic contributions toward the overall electrolyte conductivity and electrochemical performances in half-cell and full-cell configurations highlights the importance of the electrolyte formulation in LIC. We demonstrated that the energy and power densities achievable by LICs are largely influenced (and perhaps determined) by the anion adsorption at the positive electrodes, and by the ion transport within the electrolytes. Our study suggests the electrolyte properties, metrics and structural features that are relevant during the design of new LIC systems. |
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