Patent · US Active

Method of drying electrode assemblies

US10199635B2 · kind B2 · utility

4Cited by

19References

19Claims

0Family size

Assignee

GRST International Limited · CN

Inventors

Kam Piu Ho
Ranshi Wang · Sha Tin, CN
Peihua Shen · Tangxia, CN

Key dates

Filing date	Sep 22, 2016
Grant date	Feb 5, 2019
Priority date	—
Expiry date	Jul 29, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Provided herein is a method of drying electrode assembly of lithium-ion battery, comprising the steps of vacuum drying the electrode assembly in an oven at elevated temperature; filling the oven with hot, dry air or inert gas; repeating the steps of vacuum drying and gas filling 2 or more times. The method disclosed herein can provide the electrode assembly having a water content of less than 20 ppm.

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