Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode

Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinf...
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Autor*in:	Yi-Fan Tian [verfasserIn] Shuang-Jie Tan [verfasserIn] Chunpeng Yang [verfasserIn] Yu-Ming Zhao [verfasserIn] Di-Xin Xu [verfasserIn] Zhuo-Ya Lu [verfasserIn] Ge Li [verfasserIn] Jin-Yi Li [verfasserIn] Xu-Sheng Zhang [verfasserIn] Chao-Hui Zhang [verfasserIn] Jilin Tang [verfasserIn] Yao Zhao [verfasserIn] Fuyi Wang [verfasserIn] Rui Wen [verfasserIn] Quan Xu [verfasserIn] Yu-Guo Guo [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Übergeordnetes Werk:	In: Nature Communications - Nature Portfolio, 2016, 14(2023), 1, Seite 10
Übergeordnetes Werk:	volume:14 ; year:2023 ; number:1 ; pages:10

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1038/s41467-023-43093-6

Katalog-ID:	DOAJ092117279

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520			\|a Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries.
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allfields	10.1038/s41467-023-43093-6 doi (DE-627)DOAJ092117279 (DE-599)DOAJ02656955f9864f13bb4ac39b4043f189 DE-627 ger DE-627 rakwb eng Yi-Fan Tian verfasserin aut Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries. Science Q Shuang-Jie Tan verfasserin aut Chunpeng Yang verfasserin aut Yu-Ming Zhao verfasserin aut Di-Xin Xu verfasserin aut Zhuo-Ya Lu verfasserin aut Ge Li verfasserin aut Jin-Yi Li verfasserin aut Xu-Sheng Zhang verfasserin aut Chao-Hui Zhang verfasserin aut Jilin Tang verfasserin aut Yao Zhao verfasserin aut Fuyi Wang verfasserin aut Rui Wen verfasserin aut Quan Xu verfasserin aut Yu-Guo Guo verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 10 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:10 https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/article/02656955f9864f13bb4ac39b4043f189 kostenfrei https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 10
spelling	10.1038/s41467-023-43093-6 doi (DE-627)DOAJ092117279 (DE-599)DOAJ02656955f9864f13bb4ac39b4043f189 DE-627 ger DE-627 rakwb eng Yi-Fan Tian verfasserin aut Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries. Science Q Shuang-Jie Tan verfasserin aut Chunpeng Yang verfasserin aut Yu-Ming Zhao verfasserin aut Di-Xin Xu verfasserin aut Zhuo-Ya Lu verfasserin aut Ge Li verfasserin aut Jin-Yi Li verfasserin aut Xu-Sheng Zhang verfasserin aut Chao-Hui Zhang verfasserin aut Jilin Tang verfasserin aut Yao Zhao verfasserin aut Fuyi Wang verfasserin aut Rui Wen verfasserin aut Quan Xu verfasserin aut Yu-Guo Guo verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 10 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:10 https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/article/02656955f9864f13bb4ac39b4043f189 kostenfrei https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 10
allfields_unstemmed	10.1038/s41467-023-43093-6 doi (DE-627)DOAJ092117279 (DE-599)DOAJ02656955f9864f13bb4ac39b4043f189 DE-627 ger DE-627 rakwb eng Yi-Fan Tian verfasserin aut Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries. Science Q Shuang-Jie Tan verfasserin aut Chunpeng Yang verfasserin aut Yu-Ming Zhao verfasserin aut Di-Xin Xu verfasserin aut Zhuo-Ya Lu verfasserin aut Ge Li verfasserin aut Jin-Yi Li verfasserin aut Xu-Sheng Zhang verfasserin aut Chao-Hui Zhang verfasserin aut Jilin Tang verfasserin aut Yao Zhao verfasserin aut Fuyi Wang verfasserin aut Rui Wen verfasserin aut Quan Xu verfasserin aut Yu-Guo Guo verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 10 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:10 https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/article/02656955f9864f13bb4ac39b4043f189 kostenfrei https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 10
allfieldsGer	10.1038/s41467-023-43093-6 doi (DE-627)DOAJ092117279 (DE-599)DOAJ02656955f9864f13bb4ac39b4043f189 DE-627 ger DE-627 rakwb eng Yi-Fan Tian verfasserin aut Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries. Science Q Shuang-Jie Tan verfasserin aut Chunpeng Yang verfasserin aut Yu-Ming Zhao verfasserin aut Di-Xin Xu verfasserin aut Zhuo-Ya Lu verfasserin aut Ge Li verfasserin aut Jin-Yi Li verfasserin aut Xu-Sheng Zhang verfasserin aut Chao-Hui Zhang verfasserin aut Jilin Tang verfasserin aut Yao Zhao verfasserin aut Fuyi Wang verfasserin aut Rui Wen verfasserin aut Quan Xu verfasserin aut Yu-Guo Guo verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 10 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:10 https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/article/02656955f9864f13bb4ac39b4043f189 kostenfrei https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 10
allfieldsSound	10.1038/s41467-023-43093-6 doi (DE-627)DOAJ092117279 (DE-599)DOAJ02656955f9864f13bb4ac39b4043f189 DE-627 ger DE-627 rakwb eng Yi-Fan Tian verfasserin aut Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries. Science Q Shuang-Jie Tan verfasserin aut Chunpeng Yang verfasserin aut Yu-Ming Zhao verfasserin aut Di-Xin Xu verfasserin aut Zhuo-Ya Lu verfasserin aut Ge Li verfasserin aut Jin-Yi Li verfasserin aut Xu-Sheng Zhang verfasserin aut Chao-Hui Zhang verfasserin aut Jilin Tang verfasserin aut Yao Zhao verfasserin aut Fuyi Wang verfasserin aut Rui Wen verfasserin aut Quan Xu verfasserin aut Yu-Guo Guo verfasserin aut In Nature Communications Nature Portfolio, 2016 14(2023), 1, Seite 10 (DE-627)626457688 (DE-600)2553671-0 20411723 nnns volume:14 year:2023 number:1 pages:10 https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/article/02656955f9864f13bb4ac39b4043f189 kostenfrei https://doi.org/10.1038/s41467-023-43093-6 kostenfrei https://doaj.org/toc/2041-1723 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2110 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 1 10
language	English
source	In Nature Communications 14(2023), 1, Seite 10 volume:14 year:2023 number:1 pages:10
sourceStr	In Nature Communications 14(2023), 1, Seite 10 volume:14 year:2023 number:1 pages:10
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Science Q
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container_title	Nature Communications
authorswithroles_txt_mv	Yi-Fan Tian @@aut@@ Shuang-Jie Tan @@aut@@ Chunpeng Yang @@aut@@ Yu-Ming Zhao @@aut@@ Di-Xin Xu @@aut@@ Zhuo-Ya Lu @@aut@@ Ge Li @@aut@@ Jin-Yi Li @@aut@@ Xu-Sheng Zhang @@aut@@ Chao-Hui Zhang @@aut@@ Jilin Tang @@aut@@ Yao Zhao @@aut@@ Fuyi Wang @@aut@@ Rui Wen @@aut@@ Quan Xu @@aut@@ Yu-Guo Guo @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	626457688
id	DOAJ092117279
language_de	englisch
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author	Yi-Fan Tian
spellingShingle	Yi-Fan Tian misc Science misc Q Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
authorStr	Yi-Fan Tian
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topic_title	Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
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title	Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
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title_full	Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
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author_browse	Yi-Fan Tian Shuang-Jie Tan Chunpeng Yang Yu-Ming Zhao Di-Xin Xu Zhuo-Ya Lu Ge Li Jin-Yi Li Xu-Sheng Zhang Chao-Hui Zhang Jilin Tang Yao Zhao Fuyi Wang Rui Wen Quan Xu Yu-Guo Guo
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title_sort	tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
title_auth	Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
abstract	Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries.
abstractGer	Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries.
abstract_unstemmed	Abstract Micron-sized Si anode promises a much higher theoretical capacity than the traditional graphite anode and more attractive application prospect compared to its nanoscale counterpart. However, its severe volume expansion during lithiation requires solid electrolyte interphase (SEI) with reinforced mechanical stability. Here, we propose a solvent-induced selective dissolution strategy to in situ regulate the mechanical properties of SEI. By introducing a high-donor-number solvent, gamma-butyrolactone, into conventional electrolytes, low-modulus components of the SEI, such as Li alkyl carbonates, can be selectively dissolved upon cycling, leaving a robust SEI mainly consisting of lithium fluoride and polycarbonates. With this strategy, raw micron-sized Si anode retains 87.5% capacity after 100 cycles at 0.5 C (1500 mA g−1, 25°C), which can be improved to <300 cycles with carbon-coated micron-sized Si anode. Furthermore, the Si\|\|LiNi0.8Co0.1Mn0.1O2 battery using the raw micron-sized Si anode with the selectively dissolved SEI retains 83.7% capacity after 150 cycles at 0.5 C (90 mA g−1). The selective dissolution effect for tailoring the SEI, as well as the corresponding cycling life of the Si anodes, is positively related to the donor number of the solvents, which highlights designing high-donor-number electrolytes as a guideline to tailor the SEI for stabilizing volume-changing alloying-type anodes in high-energy rechargeable batteries.
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title_short	Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode
url	https://doi.org/10.1038/s41467-023-43093-6 https://doaj.org/article/02656955f9864f13bb4ac39b4043f189 https://doaj.org/toc/2041-1723
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author2	Shuang-Jie Tan Chunpeng Yang Yu-Ming Zhao Di-Xin Xu Zhuo-Ya Lu Ge Li Jin-Yi Li Xu-Sheng Zhang Chao-Hui Zhang Jilin Tang Yao Zhao Fuyi Wang Rui Wen Quan Xu Yu-Guo Guo
author2Str	Shuang-Jie Tan Chunpeng Yang Yu-Ming Zhao Di-Xin Xu Zhuo-Ya Lu Ge Li Jin-Yi Li Xu-Sheng Zhang Chao-Hui Zhang Jilin Tang Yao Zhao Fuyi Wang Rui Wen Quan Xu Yu-Guo Guo
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doi_str	10.1038/s41467-023-43093-6
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