Patent · US Active

Lithium battery cathode and method of manufacturing

US10985373B2 · kind B2 · utility

1Cited by

34References

34Claims

0Family size

Assignee

Global Graphene Group, Inc. · US

Inventors

Baofei Pan · Dayton, US
Hui He · Dayton, US
Aruna Zhamu · Springboro, US
Bor Z. Jang · Centerville, US

Key dates

Filing date	Feb 27, 2017
Grant date	Apr 20, 2021
Priority date	—
Expiry date	Oct 21, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Provided is cathode active material layer for a lithium battery. The cathode active material layer comprises multiple cathode active material particles and an optional conductive additive that are bonded together by a binder comprising a high-elasticity polymer having a recoverable tensile strain from 5% to 700% (preferably from 10% to 100%) when measured without an additive or reinforcement in said polymer and a lithium ion conductivity no less than 10−5 S/cm (preferably and typically from 1.0×10−5 S/cm to 5×10−2 S/cm) at room temperature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.