Replacing conventional battery electrolyte additives with dioxolone derivatives for high-energy-density lithium-ion batteries
Cited 0 times in
Cited 0 times in
- Title
- Replacing conventional battery electrolyte additives with dioxolone derivatives for high-energy-density lithium-ion batteries
- Author
- Park, Sewon; Jeong, Seo Yeong; Lee, Tae Kyung; Park, Min Woo; Lim, Hyeong Yong; Sung, Jaekyung; Cho, Jaephil; Kwak, Sang Kyu; Hong, Sung You; Choi, Nam-Soon
- Issue Date
- 2021-02
- Publisher
- Nature Publishing Group
- Citation
- NATURE COMMUNICATIONS, v.12, pp.838
- Abstract
- Solid electrolyte interphases generated using electrolyte additives are key for anode-electrolyte interactions and for enhancing the lithium-ion battery lifespan. Classical solid electrolyte interphase additives, such as vinylene carbonate and fluoroethylene carbonate, have limited potential for simultaneously achieving a long lifespan and fast chargeability in high-energy-density lithium-ion batteries (LIBs). Here we report a next-generation synthetic additive approach that allows to form a highly stable electrode-electrolyte interface architecture from fluorinated and silylated electrolyte additives; it endures the lithiation-induced volume expansion of Si-embedded anodes and provides ion channels for facile Li-ion transport while protecting the Ni-rich LiNi0.8Co0.1Mn0.1O2 cathodes. The retrosynthetically designed solid electrolyte interphase-forming additives, 5-methyl-4-((trifluoromethoxy)methyl)-1,3-dioxol-2-one and 5-methyl-4-((trimethylsilyloxy)methyl)-1,3-dioxol-2-one, provide spatial flexibility to the vinylene carbonate-derived solid electrolyte interphase via polymeric propagation with the vinyl group of vinylene carbonate. The interface architecture from the synthesized vinylene carbonate-type additive enables high-energy-density LIBs with 81.5% capacity retention after 400 cycles at 1 C and fast charging capability (1.9% capacity fading after 100 cycles at 3 C).
- URI
- https://scholarworks.unist.ac.kr/handle/201301/49989
- DOI
- 10.1038/s41467-021-21106-6
- ISSN
- 2041-1723
- Appears in Collections:
- CHM_Journal Papers
ECHE_Journal Papers
- Files in This Item:
-
s41467-021-21106-6.pdf
Download
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.