Method of charging a lithium-sulphur cell
US10038223B2 · kind B2 · utility
5Cited by
73References
13Claims
0Family size
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Key dates
| Filing date | Mar 21, 2014 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Apr 12, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for charging a lithium-sulphur cell, said method comprising: monitoring the voltage, V, of a cell during charge as a function of time, t, or capacity, Q, determining, in a voltage region in which the cell transitions between the first stage and second stage of charge, the reference capacity, Qref, of the cell at which dV/dt or dV/dQ is at a maximum, terminating charge when the capacity of the cell reaches a.Qref, where a is 1.1 to 1.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.