| abstract |
The present invention relates to a kind of ionic liquid (A) for lithium ion battery, its preparation method, the electrolytic solution prepared by the ionic liquid (A) and the lithium ion battery using the ionic liquid (A), especially a diphenyl An ionic liquid (A) of a quaternary ammonium phosphonate or a quaternary phosphonium diphenylphosphonate, a preparation method thereof, an electrolyte prepared from the ionic liquid (A), and a lithium ion battery using the ionic liquid (A). The ionic liquid (A) for lithium ion battery is characterized in that: the chemical structural formula of the ionic liquid (A) is: The production method of the ionic liquid (A) provided by the present invention can be carried out in batches, and the cost is low; the electrolytic solution made by using the ionic liquid (A) can ensure the safe operation of the lithium battery at high temperature, and eliminate the safety hazards of the flammable and explosive lithium battery. Hidden danger. |