Enhancement of oxidative stability of lithium metal batteries (LMBs) using ether-based electrolytes

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2021-POL-69529
Lithium metal batteries are a promising approach for increasing the energy density of batteries; however, they can suffer from poor cyclability, dendritic deposition, and cathode electrolyte interface problems. Researchers at Purdue have developed ether-based electrolytes that are cost effective, improve the anodic stability of ethers at high-voltage and enhance the oxidation stability of the battery. This technology overcomes the limitations of existing ether-based electrolytes that hinder their practical applications in high-voltage conditions.


Technology Validation:

- Ultra-high coulombic efficiency (99.90 %, 4.3 V) seen after stable cycling within a practical LMB.

Advantages:

- Better anode and cathode compatibility with high ionic conductivity as well as small interfacial resistance when used in an LMB
- High performance of high-voltage Li metal batteries seen, especially at low temperatures.

Applications:

- ¬Lithium Metal Batteries
Aug 30, 2023
Utility Patent
United States
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Feb 21, 2023
Provisional-Patent
United States
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Aug 31, 2022
Provisional-Patent
United States
(None)
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Purdue Office of Technology Commercialization
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Fax: (765) 463-3486
Email: otcip@prf.org