Summary:

The present invention provides a non-destructive lithium supplement composite separator, wherein the non-destructive lithium supplement composite separator comprises: a basement film layer and a functional layer, and the functional layer comprises: an organic lithium supplement agent, a catalyst, a conductive agent and a binder, wherein the organic lithium supplement is a carbohydrate of lithium, and the catalyst is a transition metal carbide. The non-destructive lithium supplement composite separator provided by the present invention can reduce the decomposition potential of the organic lithium supplement material to below 4.4V.

Link: http://epub.cnipa.gov.cn/patent/CN114552125A?8kt2YOWWXQBD=1667819318144