Gel electrolyte membrane and method for forming the same, electrode assembly, gel polymer lithium-ion battery and electric vehicle

A method for forming a gel electrolyte membrane, comprising:

• providing a cathode and/or an anode;
• forming a gel electrolyte precursor;
• and
• forming the gel electrolyte membrane on at least one surface of the electrode by the gel electrolyte precursor through growing in situ;
• wherein the gel electrolyte precursor comprises a liquid mixture A and a liquid mixture B, the liquid mixture A comprising a polymer matrix and an organic solvent, and the liquid mixture B comprising a lithium salt, a plasticizer, and an additive;
• wherein the gel electrolyte precursor is formed by the following steps:
• pre-stirred the liquid mixture A and the liquid mixture B respectively at a speed of 100 to 5000 rpm and at a temperature of −10 to 30° C. for 0.5 to 96 h until the liquid mixture A and the liquid mixture B are respectively dissolved;
• and
• mixing the dissolved liquid mixture A and liquid mixture B and stirring at a speed of 100 to 5000 rpm and at a temperature of −10 to 30° C. for 0.5 to 96 h until the mixture of the liquid mixture A and the liquid mixture B are homogenously dispersed.