Acrylic random copolymer and network binders for silicon anodes in lithium-ion batteries
- Authors
- Son J.; Vo T.N.; Cho S.; Preman A.N.; Kim I.T.; Ahn S.-K.
- Issue Date
- May-2020
- Publisher
- Elsevier B.V.
- Keywords
- Crosslinking; Lithium-ion batteries; Polymer binder; Si anode
- Citation
- Journal of Power Sources, v.458
- Journal Title
- Journal of Power Sources
- Volume
- 458
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/26426
- DOI
- 10.1016/j.jpowsour.2020.228054
- ISSN
- 0378-7753
- Abstract
- The choice of a binder can greatly influence the electrochemical performance of lithium-ion batteries (LIBs), especially for silicon (Si) anodes. To systematically modulate the mechanical properties of binders and to investigate their impact on the electrochemical properties, we synthesize a series of random copolymers consisting of acrylic acid (AA) and n-butyl acrylate (n-BA) via reversible addition-fragmentation chain-transfer (RAFT) polymerization. The electrochemical properties of Si nanoparticle (SiNP) anodes prepared using copolymer binders exhibit a strong dependence on the relative composition of AA and n-BA. The incorporation of a moderate amount of n-BA (10–30 mol%) in the copolymer binder provides better cycling stability compared to a SiNP anode prepared using poly(acrylic acid) (PAA) binder. The binder containing 30 mol% of n-BA is further crosslinked by in-situ crosslinking using a variable amount of polyethylene glycol diglycidyl ether (PEGDE). The electrochemical properties (3050 mAh g−1 in the 1st cycle and 40% capacity retention in the 100th cycle at 0.5 A g−1) of a SiNP anode prepared using the crosslinked binder with 14 wt% of PEGDE show further improvement compared to those of a SiNP anode prepared using PAA binder (2310 mAh g−1 and 32% capacity retention in the 100th cycle at 0.5 A g−1). © 2020 Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 공과대학 > 화공생명공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/26426)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.