title: Effects of solvents and salt on the thermal stability of lithiated graphite used in lithium ion battery.
abstract: The thermal stability of lithiated graphite in the presence of solvents, electrolytes and LiPF(6) salt was studied using C80 micro-calorimeter. The presence of cyclic carbonates or linear carbonates increases the activity of Li(x)C(6)-solvent coexisting system, especially for the Li(x)C(6)-linear carbonates one. LiPF(6) was detected that it increases the activity greatly of its coexisting system with lithiated graphite. The coexisting system of Li(x)C(6) with the electrolyte of LiPF(6)/ethylene carbonate+diethyl carbonate shows less thermal stability, which is attributed to the activity between diethyl carbonate and Li(x)C(6). This also agrees with the experiment result of Li(x)C(6)-diethyl carbonate coexisting system.
authors.affiliation: State Key Laboratory of Fire Science, University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, Anhui, PR China. pinew@ustc.edu.cn
authors.forename: Qingsong
authors.initials: Q
authors.lastname: Wang
authors.forename: Jinhua
authors.initials: J
authors.lastname: Sun
authors.forename: Chunhua
authors.initials: C
authors.lastname: Chen
mesh_terms: D004047:Diethyl Pyrocarbonate / Q000031:analogs & derivatives; D004148:Dioxolanes; D011211:Electric Power Supplies; D006108:Graphite; D008094:Lithium; D012492:Salts; D012997:Solvents
chemical_list: D004148:Dioxolanes; D012492:Salts; D012997:Solvents; C017858:ethyl carbonate; D006108:Graphite; D008094:Lithium; D004047:Diethyl Pyrocarbonate; C031133:ethylene carbonate