High power, extended temperature range-capable, highly abuse overcharge and discharge tolerant rechargeable battery cell and pack
US12034163B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Oct 4, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Oct 4, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula Li1+xMO2+y, wherein −0.9≤x≤0.3, −0.3≤y≤0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, an anode including an anode electrochemically active material defined by an electrochemical redox potential of 400 mV or greater vs Li/Li+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.