Modifying the ORR route by the addition of lithium and potassium salts in Na-O

Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 ce...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Landa-Medrano, Imanol [verfasserIn] Ruiz de Larramendi, Idoia [verfasserIn] Rojo, Teófilo [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives

Übergeordnetes Werk:	Enthalten in: Electrochimica acta - New York, NY [u.a.] : Elsevier, 1959, 263, Seite 102-109
Übergeordnetes Werk:	volume:263 ; pages:102-109

DOI / URN:	10.1016/j.electacta.2017.12.141

Katalog-ID:	ELV001325736

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520			\|a Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries.
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650		4	\|a Alkali metals
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allfields	10.1016/j.electacta.2017.12.141 doi (DE-627)ELV001325736 (ELSEVIER)S0013-4686(17)32715-9 DE-627 ger DE-627 rda eng 540 DE-600 35.00 bkl Landa-Medrano, Imanol verfasserin aut Modifying the ORR route by the addition of lithium and potassium salts in Na-O 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries. Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives Ruiz de Larramendi, Idoia verfasserin aut Rojo, Teófilo verfasserin aut Enthalten in Electrochimica acta New York, NY [u.a.] : Elsevier, 1959 263, Seite 102-109 Online-Ressource (DE-627)300897561 (DE-600)1483548-4 (DE-576)094752451 1873-3859 nnns volume:263 pages:102-109 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.00 Chemie: Allgemeines AR 263 102-109
spelling	10.1016/j.electacta.2017.12.141 doi (DE-627)ELV001325736 (ELSEVIER)S0013-4686(17)32715-9 DE-627 ger DE-627 rda eng 540 DE-600 35.00 bkl Landa-Medrano, Imanol verfasserin aut Modifying the ORR route by the addition of lithium and potassium salts in Na-O 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries. Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives Ruiz de Larramendi, Idoia verfasserin aut Rojo, Teófilo verfasserin aut Enthalten in Electrochimica acta New York, NY [u.a.] : Elsevier, 1959 263, Seite 102-109 Online-Ressource (DE-627)300897561 (DE-600)1483548-4 (DE-576)094752451 1873-3859 nnns volume:263 pages:102-109 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.00 Chemie: Allgemeines AR 263 102-109
allfields_unstemmed	10.1016/j.electacta.2017.12.141 doi (DE-627)ELV001325736 (ELSEVIER)S0013-4686(17)32715-9 DE-627 ger DE-627 rda eng 540 DE-600 35.00 bkl Landa-Medrano, Imanol verfasserin aut Modifying the ORR route by the addition of lithium and potassium salts in Na-O 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries. Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives Ruiz de Larramendi, Idoia verfasserin aut Rojo, Teófilo verfasserin aut Enthalten in Electrochimica acta New York, NY [u.a.] : Elsevier, 1959 263, Seite 102-109 Online-Ressource (DE-627)300897561 (DE-600)1483548-4 (DE-576)094752451 1873-3859 nnns volume:263 pages:102-109 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.00 Chemie: Allgemeines AR 263 102-109
allfieldsGer	10.1016/j.electacta.2017.12.141 doi (DE-627)ELV001325736 (ELSEVIER)S0013-4686(17)32715-9 DE-627 ger DE-627 rda eng 540 DE-600 35.00 bkl Landa-Medrano, Imanol verfasserin aut Modifying the ORR route by the addition of lithium and potassium salts in Na-O 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries. Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives Ruiz de Larramendi, Idoia verfasserin aut Rojo, Teófilo verfasserin aut Enthalten in Electrochimica acta New York, NY [u.a.] : Elsevier, 1959 263, Seite 102-109 Online-Ressource (DE-627)300897561 (DE-600)1483548-4 (DE-576)094752451 1873-3859 nnns volume:263 pages:102-109 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.00 Chemie: Allgemeines AR 263 102-109
allfieldsSound	10.1016/j.electacta.2017.12.141 doi (DE-627)ELV001325736 (ELSEVIER)S0013-4686(17)32715-9 DE-627 ger DE-627 rda eng 540 DE-600 35.00 bkl Landa-Medrano, Imanol verfasserin aut Modifying the ORR route by the addition of lithium and potassium salts in Na-O 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries. Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives Ruiz de Larramendi, Idoia verfasserin aut Rojo, Teófilo verfasserin aut Enthalten in Electrochimica acta New York, NY [u.a.] : Elsevier, 1959 263, Seite 102-109 Online-Ressource (DE-627)300897561 (DE-600)1483548-4 (DE-576)094752451 1873-3859 nnns volume:263 pages:102-109 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.00 Chemie: Allgemeines AR 263 102-109
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author	Landa-Medrano, Imanol
spellingShingle	Landa-Medrano, Imanol ddc 540 bkl 35.00 misc Metal-oxygen batteries misc Alkali metals misc Reaction mechanism misc Oxygen reduction reaction misc Additives Modifying the ORR route by the addition of lithium and potassium salts in Na-O
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topic_title	540 DE-600 35.00 bkl Modifying the ORR route by the addition of lithium and potassium salts in Na-O Metal-oxygen batteries Alkali metals Reaction mechanism Oxygen reduction reaction Additives
topic	ddc 540 bkl 35.00 misc Metal-oxygen batteries misc Alkali metals misc Reaction mechanism misc Oxygen reduction reaction misc Additives
topic_unstemmed	ddc 540 bkl 35.00 misc Metal-oxygen batteries misc Alkali metals misc Reaction mechanism misc Oxygen reduction reaction misc Additives
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title	Modifying the ORR route by the addition of lithium and potassium salts in Na-O
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title_full	Modifying the ORR route by the addition of lithium and potassium salts in Na-O
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author_browse	Landa-Medrano, Imanol Ruiz de Larramendi, Idoia Rojo, Teófilo
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title_sort	modifying the orr route by the addition of lithium and potassium salts in na-o
title_auth	Modifying the ORR route by the addition of lithium and potassium salts in Na-O
abstract	Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries.
abstractGer	Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries.
abstract_unstemmed	Sodium-oxygen (Na-O2) batteries have been considered as promising alternatives to lithium-oxygen batteries for high energy density applications. Herein, we report the utilisation of Li+ and K+ salts to the Na+ based electrolyte in order to tailor the oxygen reduction reaction (ORR) route in Na-O2 cells. Li+ salt addition promotes a surface confined ORR due to the incapability to stabilize superoxide radical intermediate product in the electrolyte leading to a poor electrochemical performance. The discharge capacities achieved using K+ salt additive are also lower than those obtained without it due to the incapability of KO2 to precipitate on the oxygen electrode, turning the initial solution-phase ORR to a surface-confined ORR after supersaturation. In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries.
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title_short	Modifying the ORR route by the addition of lithium and potassium salts in Na-O
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author2	Ruiz de Larramendi, Idoia Rojo, Teófilo
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doi_str	10.1016/j.electacta.2017.12.141
up_date	2024-07-06T20:59:25.184Z
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In this work we show that stabilization of the intermediate products and an efficient precipitation of the final products at the oxygen electrode are key factors governing the electrochemical performance in NaO2 batteries.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Metal-oxygen batteries</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Alkali metals</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Reaction mechanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Oxygen reduction reaction</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Additives</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ruiz de Larramendi, Idoia</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Rojo, 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Modifying the ORR route by the addition of lithium and potassium salts in Na-O

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