Negative electrode material for an electrical storage device, and negative electrode for an electrical storage device using the same

摘要

Provided is a negative electrode material for an electricity storage device, comprises, a negative electrode active material comprising a compound containing at least SnO and P2O5, and a binder comprising a thermosetting resin. Also provided is a negative electrode for an electricity storage device, comprising a current collector having a surface coated with the negative electrode material for an electricity storage device. Further provided is a method of producing the negative electrode for an electricity storage device, the method comprising the steps of: coating the surface of the current collector with the negative electrode material for an electricity storage device; and carrying out heat treatment of the current collector at 150 to 400° C. under reduced pressure.

主权项

1. A negative electrode material, comprising, in terms of mass %:
55 to 90% of a negative electrode active material comprising a compound containing at least, in terms of mol %, 45 to 95% of SnO and 5 to 55% of P2O5; 5 to 30% of a binder comprising a thermosetting resin,
wherein the thermosetting resin comprises one of a thermosetting polyimide and a thermosetting polyamide-imide; and 3 to 20% of a conductive agent.