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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c02751
|2 doi
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|a pubmed24n1116.xml
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|a eng
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1 |
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|a Li, Jianbin
|e verfasserin
|4 aut
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|a Cross-Linked Sodium Alginate-Sodium Borate Hybrid Binders for High-Capacity Silicon Anodes in Lithium-Ion Batteries
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 11.01.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Silicon is considered one of the most promising next-generation anode materials for lithium-ion batteries. It has the advantages of high theoretical specific capacity (4200 mAh·g-1), which is 10 times larger than that of a commercial graphite anode (372 mAh·g-1). However, there are some problems such as the pulverization of the electrode and an unstable solid electrolyte interphase (SEI) layer aroused by the huge bulk effect (>300%) of Si during the repeated lithiation/delithiation process. A binder plays a vital role in the conventional lithium-ion batteries that can effectively relieve the bulk expansion stress of a silicon anode. In this work, the inorganic cross-linker sodium borate (SB) and the commonly used binder sodium alginate (SA) were condensed through an esterification reaction and the reaction product was marked as SA-SB. It is found that the mechanical robustness and the peel strength of SA-SB are improved after cross-linking, which is conducive to maintaining the structural stability of the silicon anode in long cycle life. In consequence, the capacity retention of the silicon anode using the SA-SB binder (64.1%) is higher than that of SA (50.6%) after 100 cycles at 0.2 A·g-1
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|a Journal Article
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1 |
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|a Hu, Xianchao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Hongshun
|e verfasserin
|4 aut
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| 700 |
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|a Ren, Yurong
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Xiaobing
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 1 vom: 11. Jan., Seite 402-410
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:38
|g year:2022
|g number:1
|g day:11
|g month:01
|g pages:402-410
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|u http://dx.doi.org/10.1021/acs.langmuir.1c02751
|3 Volltext
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