Chemical overcharge protection of lithium and lithium-ion secondary batteries
Patent
·
OSTI ID:321253
This invention features the use of redox reagents, dissolved in non-aqueous electrolytes, to provide overcharge protection for cells having lithium metal or lithium-ion negative electrodes (anodes). In particular, the invention features the use of a class of compounds consisting of thianthrene and its derivatives as redox shuttle reagents to provide overcharge protection. Specific examples of this invention are thianthrene and 2,7-diacetyl thianthrene. One example of a rechargeable battery in which 2,7-diacetyl thianthrene is used has carbon negative electrode (anode) and spinet LiMn{sub 2}O{sub 4} positive electrode (cathode). 8 figs.
- Research Organization:
- US Advanced Battery Consortium
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC02-91CE50336
- Assignee:
- EIC Laboratories, Inc., Norwood, MA (United States)
- Patent Number(s):
- US 5,858,573/A/
- Application Number:
- PAN: 8-703,577
- OSTI ID:
- 321253
- Resource Relation:
- Other Information: PBD: 12 Jan 1999
- Country of Publication:
- United States
- Language:
- English
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