High elastic modulus polymer electrolytes suitable for preventing thermal runaway in lithium batteries
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.times.10.sup.7 Pa and an ionic conductivity of at least 1.times.10.sup.-5 Scm.sup.-1. 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.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1129388
- Patent Number(s):
- 8703310
- Application Number:
- 13/664,345
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- DOE Contract Number:
- AC02-05CH11231
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 Oct 30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Mullin, Scott, Panday, Ashoutosh, Balsara, Nitash Pervez, Singh, Mohit, Eitouni, Hany Basam, and Gomez, Enrique Daniel. High elastic modulus polymer electrolytes suitable for preventing thermal runaway in lithium batteries. United States: N. p., 2014.
Web.
Mullin, Scott, Panday, Ashoutosh, Balsara, Nitash Pervez, Singh, Mohit, Eitouni, Hany Basam, & Gomez, Enrique Daniel. High elastic modulus polymer electrolytes suitable for preventing thermal runaway in lithium batteries. United States.
Mullin, Scott, Panday, Ashoutosh, Balsara, Nitash Pervez, Singh, Mohit, Eitouni, Hany Basam, and Gomez, Enrique Daniel. Tue .
"High elastic modulus polymer electrolytes suitable for preventing thermal runaway in lithium batteries". United States. https://www.osti.gov/servlets/purl/1129388.
@article{osti_1129388,
title = {High elastic modulus polymer electrolytes suitable for preventing thermal runaway in lithium batteries},
author = {Mullin, Scott and Panday, Ashoutosh and Balsara, Nitash Pervez and Singh, Mohit and Eitouni, Hany Basam and Gomez, Enrique Daniel},
abstractNote = {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.times.10.sup.7 Pa and an ionic conductivity of at least 1.times.10.sup.-5 Scm.sup.-1. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {4}
}
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