| abstract |
The invention discloses an energy storage device, comprising: an anode and a cathode; and a separator, which is arranged between the anode and the cathode; wherein, at least one of the anode, the cathode and the separator comprises a copolymerized polymer, the The copolymerized polymer is used as the non-aqueous binder and/or solid electrolyte of the energy storage device, and the copolymerized polymer is obtained by polymerizing acrylonitrile and monomers containing ion-conducting groups and/or monomers containing vinyl groups The formed copolymer or its derivatives. Thereby, the energy storage device using the copolymerized polymer can have better charging and discharging properties, and the efficiency and service life of the energy storage device can be effectively extended. |