| abstract |
The present invention provides the application of terpine resin base water-based binder in lithium ion battery negative or ultracapacitor, described terpine resin base water-based binder is made into by a certain percentage by terpene resin emulsion and carboxymethyl cellulose, and the mass ratio of terpine resin and carboxymethyl cellulose is 100:1-1:100. The described lithium ion battery negative containing this terpine resin base water-based binder formation or ultracapacitor, ratio of its composition is: active material: conductive agent: (terpine resin+carboxymethyl cellulose)=70-95:1-20:4-10. The present invention adopts the terpine resin of natural environmental-protective as lithium ion battery or ultracapacitor water-based binder, can greatly improve overall cyclical stability and the high rate performance of battery, and can significantly reduce the cost of battery. |