Aramid fiber composite lithium ion battery diaphragm

• Main Authors: ZHOU FANG, REN XIAOQIAO, RONG GUIGUO
• Format: Patent
• Language: Chinese; English
• Published: 03.02.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The utility model discloses an aramid fiber composite lithium ion battery diaphragm, which comprises a diaphragm main body, transparent side sealing edges and a transparent protective film, the transparent side sealing edges are arranged on the upper surface and two sides of the diaphragm main body, and the transparent protective film is adhered to the lower surfaces of the transparent side sealing edges. According to the aramid fiber composite lithium ion battery diaphragm disclosed by the utility model, when the diaphragm main body is stored when being not used, the transparent side sealing edge is folded, so that the second bonding layer is adhered to the first bonding layer, and the transparent protective film can be kept in a folded state under the mutual bonding action of the first bonding layer and the second bonding layer; when the diaphragm needs to be used, the transparent side sealing edge is overturned to be in an original state, then the transparent protective film is torn off, and the transparen