Lithium electrochemical accumulator of the lithium-sulfur type comprising a specific negative-electrode material
US11289732B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Oct 28, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Jun 4, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium-sulfur accumulator comprising at least one electrochemical cell comprising a positive electrode comprising, as active material, at least one sulfur-containing material, a negative electrode and an electrolyte conducting lithium ions disposed between the negative electrode and the positive electrode, wherein the negative electrode comprises, as active material, a lithium and calcium alloy, wherein the calcium is present in the alloy to the extent of 2% to 34% atomic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.