The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2014
Filed:
Oct. 30, 2012
Scott Mullin, Berkeley, CA (US);
Ashoutosh Panday, Berkeley, CA (US);
Nitash Pervez Balsara, El Cerrito, CA (US);
Mohit Singh, Berkeley, CA (US);
Hany Basam Eitouni, Berkeley, CA (US);
Enrique Daniel Gomez, Princeton, NJ (US);
Scott Mullin, Berkeley, CA (US);
Ashoutosh Panday, Berkeley, CA (US);
Nitash Pervez Balsara, El Cerrito, CA (US);
Mohit Singh, Berkeley, CA (US);
Hany Basam Eitouni, Berkeley, CA (US);
Enrique Daniel Gomez, Princeton, NJ (US);
The Regents of The University of California, Oakland, CA (US);
Abstract
A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×10Pa and an ionic conductivity of at least 1×10Scm. The electrolyte is made under dry conditions to achieve the noted characteristics. In another aspect, the electrolyte exhibits a conductivity drop when the temperature of electrolyte increases over a threshold temperature, thereby providing a shutoff mechanism for preventing thermal runaway in lithium battery cells.