Patent · US Active

Polymer electrolyte material for lithium battery cells

US11289736B2 · kind B2 · utility

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0References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jin Yang · Pleasanton, US
Hany Basam Eitouni · Oakland, US
Jonathan Mailoa · Cambridge, US

Key dates

Filing date	Jun 25, 2019
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Feb 9, 2040

Classification

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

Abstract

Lithium battery electrolyte materials comprising fluorinated phosphonates and having a polymer structure defined by: where R1 is —CF3, —(CF2)nCF3 and n is an integer ranging from 1 to 10, perfluoropolyether (PFPE), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), ethylene fluorinated ethylene propylene (EFEP), or polyethylene tetrafluoroethylene (ETFE) and R2 is —(CF2)n and n is an integer ranging from 1 to 10, perfluoropolyether (PFPE), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), ethylene fluorinated ethylene propylene (EFEP), or polyethylene tetrafluoroethylene (ETFE).

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