Lithium Bis(trimethylsilyl) Phosphate as an Electrolyte Additive to Improve the Low-Temperature Performance for LiNi0.8Co0.1Mn0.1O2/Graphite Cellsopen access
- Authors
- Kim, Jongjung; Adiraju, Venkata A. K.; Chae, Oh B.; Lucht, Brett L.
- Issue Date
- Aug-2021
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.168, no.8
- Journal Title
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY
- Volume
- 168
- Number
- 8
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/87315
- DOI
- 10.1149/1945-7111/ac1b00
- ISSN
- 0013-4651
- Abstract
- Lithium Bis(trimethylsilyl) Phosphate (LiTMSP) was incorporated as an electrolyte additive in LiNi0.8Co0.1Mn0.1O2(NCM811)/graphite cells for improving the low-temperature performance. Previously, we reported the bi-functional roles of LiTMSP for LiNi0.5Mn1.5O4/graphite cells, which are hydrogen fluoride (HF) scavenger and film-forming agent. In this work, NCM811/graphite cells with LiTMSP (1 wt%) have better rate performance at -10 degrees C than cells without LiTMSP. This is due to the reduced resistance of NCM811/graphite cells with the addition of LiTMSP, resulting from LiTMSP induced-surface film generated on graphite electrodes which has improved lithium-ion conduction.
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