Composition For Heat-Resistant Porous Layer, Separator Comprising The Same And Electrochemical Battery Using The Same
A separator, electrochemical technology, applied in the field of heat-resistant porous layer composition, can solve problems such as thermal explosion, achieve the effect of improving battery performance, high-efficiency charging/discharging characteristics, and avoiding performance degradation
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preparation example 1-1
[0105] Preparation Example 1-1: Preparation 1-1 Solution
[0106] Mix 7% by weight of polyvinylidene fluoride-hexafluoropropylene (PVdF-HFP)-based copolymer (KF9300, Kureha Chemicals, weight average molecular weight: 1,000,000 g / mol, HFP: 1% by weight) and 93% by weight % Dimethylacetamide (DMAc, Daejung Chemicals & Metals Co., Ltd.), followed by stirring at 40° C. for 3 hours, thereby preparing a 1-1 solution.
preparation example 1-2
[0107] Preparation Example 1-2: Preparation 1-2 Solution
[0108] 7% by weight of polyvinylidene fluoride (PVdF)-based homopolymer (KF1100, Kureha Chemicals, weight average molecular weight: 300,000 g / mol, HFP: 0% by weight) and 93% by weight of dimethylacetamide (DMAc , Dazhong Chemical and Metal Co., Ltd.), followed by stirring at 40° C. for 3 hours, thereby preparing a 1-2 solution.
preparation example 1-3
[0109] Preparation Example 1-3: Preparation 1-3 Solution
[0110] Mix 7% by weight of polyvinylidene fluoride (PVdF)-based homopolymer (Solvay 5130 (Solef5130), Solvay Specialty Polymers (Solvay Specialty Polymers), weight average molecular weight: 1,100,000 g / mol, HFP: 0% by weight) and 93 % by weight dimethylacetamide (DMAc, Dazhong Chemical and Metal Co., Ltd.), followed by stirring at 40° C. for 3 hours, thereby preparing a solution of 1-3.
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