Non-aqueous electrolyte of lithium ion battery and application of non-aqueous electrolyte
A lithium-ion battery, non-aqueous electrolyte technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of damage, instability, uneven SEI film, etc., to promote transmission, enhance the electron-donating effect, Effect of Optimizing High-Temperature Cycle Performance
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[0065] Example 1
[0066] The present embodiment provides a non-aqueous electrolyte lithium ion battery based on the total mass of the nonaqueous electrolytic solution as 100%, the non-aqueous electrolyte comprising a lithium ion mass percentage of 2.5% were fourth compound, 2.5% vinylene carbonate, 2.5% of the additive 1,3-propane sultone 5% sulfuric acid and vinyl acetate, a concentration of the lithium salt comprises a 1mol / L lithium hexafluorophosphate and a mass percentage of 2.5% two lithium hexafluorophosphate, 2.5% bis-fluoro imide and lithium bis (oxalato) 5% lithium difluorophosphate, balance non-aqueous solvent, a non-aqueous solvent of ethylene carbonate, ethyl carbonate, ethyl methyl carbonate, di a mass ratio of 3: 5: 2.
[0067] The non-aqueous electrolyte lithium ion battery was prepared as follows: an electrolyte prepared in a glove box in a glove box in the nitrogen content of 99.999%, the actual oxygen content of 0.1 ppm or glove box, a moisture content of 0.1...
Example Embodiment
[0074] Example 2
[0075] The present embodiment provides a non-aqueous electrolyte lithium ion battery based on the total mass of the nonaqueous electrolytic solution as 100%, the non-aqueous electrolyte comprising a lithium ion mass percentage of 0.02% were fourth compound, 0.025% of vinylene carbonate and 0.025% of 1,3-propane sultone additive, comprising the lithium salt concentration 0.5mol / L of lithium hexafluorophosphate and a mass percentage of 5% were lithium difluorophosphate, 5 % bis-fluoro imide and lithium bis (oxalato) of 10% lithium difluorophosphate, balance non-aqueous solvent, a non-aqueous solvent consisting of ethylene carbonate, ethyl methyl carbonate and diethyl carbonate in a mass ratio 3: 5: 2.
[0076] The non-aqueous electrolyte lithium ion battery was prepared as follows: an electrolyte prepared in a glove box in a glove box in the nitrogen content of 99.999%, the actual oxygen content of 0.1 ppm or glove box, a moisture content of 0.1ppm. Based on the...
Example Embodiment
[0078] Example 3
[0079] The present embodiment provides a non-aqueous electrolyte lithium ion battery based on the total mass of the nonaqueous electrolytic solution as 100%, the non-aqueous electrolyte comprising a lithium ion mass percentage of 5% were fourth compound, 5% vinylene carbonate additive 10% 1,3-propane sultone 5% sulfuric acid and vinyl acetate, a concentration of the lithium salt include 2mol / L of lithium hexafluorophosphate and a mass percentage of about 0.025% respectively two lithium hexafluorophosphate and 0.025% bis fluorosulfonyl imide, and the balance a non-aqueous solvent, a non-aqueous solvent consisting of ethylene carbonate, ethyl methyl carbonate and diethyl carbonate in a mass ratio 3: 5: 2 composition .
[0080]The nonaqueous electrolyte preparation method of the lithium ion battery is prepared as follows: the electrolyte is formulated in the glove box, and the nitrogen content in the glove box is 99.99%, and the actual oxygen content in the glove...
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