摘要:
The invention relates to a liquid electrolyte for a lithium battery, containing lithium perchlorate (LiCI04) dissolved in a quaternary mixture of ethylene carbonate (EC), diethyl carbonate (DEC), tetrahydrofurane (THF) and ethyl methyl carbonate (EMC). The liquid electrolyte advantageously contains between10 wt. % and 30 wt. % of ethylene carbonate (EC), between 10 wt. % and 30 wt. % of diethyl carbonate (DEC), between 10 wt. % and 30 wt. % of tetrahydrofurane (THF), and between 10 wt. % and 70 wt. % of ethyl methyl carbonate (EMC). The quaternary mixture is preferably a EC/DEC/THF/EMC mixture in a weight ratio 1/1/1/3. The liquid electrolyte according to the invention is especially suitable for using in a lithium battery.
摘要:
The invention relates to a lithium battery comprising at least one electrochemical cell (1) arranged in a sealed packaging (2). The electrochemical cell (1) consists of a stack (9) comprising a separator (8) arranged between a first and second electrode (3, 4). The separator (8) is impregnated with an ionic liquid electrolyte (5) including a mixture of a conductive salt, vinyl ethylene carbonate, and an ionic liquid having the formula C+A", where C+ is a cation and A" is an anion. The first electrode (3) comprises an electrochemically active material and a polymer binder, said polymer being selected from among polyacrylic acid (PAA) and sulfonated perfluoropolymers.