DOI: 10.1016/j.ensm.2019.09.009
论文题名: Key functional groups defining the formation of Si anode solid-electrolyte interphase towards high energy density Li-ion batteries
作者: Shin J. ; Kim T.-H. ; Lee Y. ; Cho E.
刊名: Energy Storage Materials
ISSN: 24058297
出版年: 2020
卷: 25 语种: 英语
英文关键词: Additive
; Lithium-ion battery
; Si anode
; Solid-electrolyte interphase
Scopus关键词: Additives
; Anodes
; Ions
; Seebeck effect
; Solid electrolytes
; Solid-State Batteries
; Chemical functionality
; Electrical contacts
; High energy densities
; Si anodes
; Solid electrolyte interphase
; Solid electrolyte interphase layer (SEI)
; Sustainable energy solutions
; Volumetric capacity
; Lithium-ion batteries
英文摘要: Renewable and sustainable energy solution, especially in transportation, is increasingly becoming an important global issue. Improving upon lithium-ion battery (LIB) energy density provides one of the most promising solutions. Silicon (Si) is regarded as the immediate next generation anode for the LIB due to its high gravimetric and volumetric capacity (about 10 times as high as the current commercial solution, graphite's). However, full incorporation of Si in the LIB still remains challenging because of two problems; high volume changes that lead to loss of electrical contacts and unsteady decomposition of electrolyte that forms highly insulating solid-electrolyte interphase (SEI) layer on Si surface. The high volume changes can be alleviated by nano-sizing the Si particles. There are a number of review articles outlining the understandings and solutions to address the physical issue. However, exclusive reviews for the SEI are scarce. In this review, fundamental understandings and challenges of the conventional Si SEI and the solutions implemented in the literature are compiled. We point out the key chemical species in engineering the formation of favorable SEI and key chemical functionalities in protecting the SEI. With the comprehensive mechanisms we summarize, we hope to achieve the full implementation of Si anode as a commercial electrode. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159101
Appears in Collections: 气候变化与战略
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作者单位: Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea; Advanced Battery Center, KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
Recommended Citation:
Shin J.,Kim T.-H.,Lee Y.,et al. Key functional groups defining the formation of Si anode solid-electrolyte interphase towards high energy density Li-ion batteries[J]. Energy Storage Materials,2020-01-01,25