Наноструктуровані композиційні матеріали для катодів високоенергоємних літієвих джерел струму

Abstract

Polyfluorocarbon material obtained by fluorination of coal, in combination with nanosized carbon materials and high molecular weight polyvinylidene fluoride, can significantly improve the electrical characteristics of the lithium batteries. The proposed composite electrically conductive additive based on different types of carbon materials has considerable practical interest for the fabrication of the composition of the cathode with an electrically conductive additive content of less than 20%. Based on the above materials, it was shown possible to increase the cathode specific discharge power by ten times (up to 2 kW per 1 kg of polyfluorocarbon materials) and to reach the high specific capacity of polyfluorocarbon (above 800 mAh/ h).