Sulfolane as a co-solvent for carbonate-electrolytes in lithium-ion batteries using a LiMn2O4 cathode

• Tác giả: Le Bao Phan An, hanh Duy Vo, Van Nguyen Hoang, Van Tran Man, Oanh Hoang Nguyen, My Loan Le Phung, Hue Luu Phuong, Hue Tran Phuong
• Ngôn ngữ: eng
• Thông tin xuất bản: Vietnam Journal of Science, Technology and Engineering - C, 2022
• Mô tả vật lý: tr.9
• Bộ sưu tập: Báo, Tạp chí
• ID: 329735

Tóm tắt

In this study, we aimed to evaluate the effect of sulfolane (SL) as a co-solvent in conventional carbonate-based electrolytes and its compatibility with a LiMn2O4 (LMO) cathode. The amount of SL was varied from 10 to 50 vol.% in an EC-DMC mixture (1:1 vol. ratio) within a 1.0-M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt. The thermal properties of the electrolytes were studied using thermogravimetric analysis (TGA). Solvent flammability was measured via self-extinguishing time (SET) and ignition time indexes while viscosity was gauged by the Ostwald method...