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Construction of stable SEI film on Si@C high-loading electrodes by dimethoxydimethylsilane electrolyte additives

文献类型：期刊论文

作者Wang, Enyang1; Liu, Yanxia1,2; Dong, Jiayu1; Zhang, Lan2; Liu, Jingbo1; Qin, Panpan1; Liu, Fan1
刊名IONICS
出版日期2022-01-28
页码10
ISSN号0947-7047
关键词Dimethoxydimethylsilane (DMDOS) Electrolyte additives SEI film Thick electrodes Li-ion battery
DOI10.1007/s11581-021-04409-y
英文摘要Silicon (Si), with its high capacity and abundant resources, presents a huge application prospect for high-energy density lithium ion batteries. Unfortunately, continuous interface reactions induced by huge volumetric changes limit its wide application. Herein, we employ dimethoxydimethylsilane (DMDOS) as an additive to enhance the electrochemical performances in LiNi0.8Co0.15Al0.05O2(NCA)/Si@C pouch cell with high-loading electrodes. DMDOS can be decomposed preferentially and then create a dense layer of Si-O-Si cross-polymerized network on the electrode surface, mitigating continuous interface reactions of the electrolyte during long-term cycling. As a consequence, the pouch battery with 1% DMDOS renders an outstanding capacity retention of 85.5% over 100 cycles, whereas the pouch battery without DMDOS only shows a low capacity retention of 77.7%. Hence, DMDOS is an effective additive candidate for the development of high-energy density lithium ion batteries.
WOS关键词ELECTROCHEMICAL PERFORMANCE ; LI-ION ; ANODE MATERIALS ; LITHIUM ; SILICON ; QUANTIFICATION ; INTERPHASE ; STABILITY ; SILANE
资助项目National Key Research and Development Program of China[2016YFB0100303] ; Key Science and Technology Special Project of Henan[202102210106] ; Zhengzhou Major Science and Technology Projects[2019CXZX0074]
WOS研究方向Chemistry ; Electrochemistry ; Physics
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000749232100003
资助机构National Key Research and Development Program of China ; Key Science and Technology Special Project of Henan ; Zhengzhou Major Science and Technology Projects
源URL[http://ir.ipe.ac.cn/handle/122111/51828]  
专题中国科学院过程工程研究所
通讯作者Liu, Yanxia
作者单位1.Zhengzhou Inst Emerging Ind Technol, Henan Key Lab Energy Storage Mat & Proc, Zhengzhou 450003, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Enyang,Liu, Yanxia,Dong, Jiayu,et al. Construction of stable SEI film on Si@C high-loading electrodes by dimethoxydimethylsilane electrolyte additives[J]. IONICS,2022:10.
APA Wang, Enyang.,Liu, Yanxia.,Dong, Jiayu.,Zhang, Lan.,Liu, Jingbo.,...&Liu, Fan.(2022).Construction of stable SEI film on Si@C high-loading electrodes by dimethoxydimethylsilane electrolyte additives.IONICS,10.
MLA Wang, Enyang,et al."Construction of stable SEI film on Si@C high-loading electrodes by dimethoxydimethylsilane electrolyte additives".IONICS (2022):10.

入库方式： OAI收割

来源：过程工程研究所

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