Patent ID: 9570728
Date: 2017-02-14
CPC Classifications: H01M,Y02E

Claim:
1. An electricity supply element, comprising: a first electrode substrate, including a first current collector layer and a first active material layer, wherein the first current collector layer includes a first surface and a second surface opposed each other, the first active material layer is disposed on the first surface of the first current collector layer; a second electrode substrate, including a second current collector layer and a second active material layer, wherein the second current collector layer includes a first surface and a second surface opposed each other, the second active material layer is disposed on the first surface of the second current collector layer; and a ceramic separator, disposed between the first electrode substrate and the second electrode substrate and composed of a plurality of ceramic particulates and a dual binder system thereon, wherein the percentage of the ceramic particulates by the dual binder system is more than 60% and the dual binder system includes a linear polymer and a cross-linking polymer; wherein the cross-linking polymer of the dual binder system is a ladder cross-linking polymer with ladder structure, including polyimide (PI) and the derivatives thereof, so that the ladder cross-linking polymer promotes a balance of an electrical inactivity and an ionic conductivity due to the ladder cross-linking polymer is an electrically inactive material.