Patent ID: 9130231
Filing Date: 2015-09-08
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A lithium ion battery, comprising: a positive electrode; a negative electrode; a microporous polymer separator soaked in an electrolyte solution, the microporous polymer separator disposed between the positive electrode and the negative electrode; and a chelating agent chemically attached to the microporous polymer separator, a binder material of the negative electrode, or a binder material of the positive electrode, and wherein the one or more chelating agents complex with transition metal cations but complex less strongly with lithium ions so that the movement of lithium ions between the negative and positive electrodes is not substantially affected; wherein the chelating agent is selected from the group consisting of a crown ether, a cryptand, a podand, a lariat ether, a calixarene, a calixcrown, or a mixture of two or more of these chelating agents.