Chemical overcharge protection of lithium and lithium-ion secondary batteries
Patent
·
OSTI ID:872099
- Needham, MA
- Cork City, IE
- Dedham, MA
- Pawtucket, RI
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).
- Research Organization:
- United States Advanced Battery Consortium, Dearborn, MI (US)
- DOE Contract Number:
- FC02-91CE50336
- Assignee:
- EIC Laboratories, Inc. (Norwood, MA)
- Patent Number(s):
- US 5858573
- OSTI ID:
- 872099
- Country of Publication:
- United States
- Language:
- English
Preparation and properties of polyamides containing thianthrene units
|
journal | January 1987 |
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Related Subjects
/29/429/
7-diacetyl
anode
anodes
aqueous electrolyte
batteries
battery
carbon
cathode
cells
chemical
compounds
compounds consisting
consisting
derivatives
dissolved
electrode
electrodes
electrolytes
example
examples
features
limn
lithium
lithium metal
lithium-ion
metal
negative
negative electrode
negative electrodes
non-aqueous
non-aqueous electrolytes
overcharge
overcharge protection
particular
positive
positive electrode
protection
provide
provide overcharge
reagents
rechargeable
rechargeable battery
redox
redox shuttle
secondary
secondary batteries
shuttle
specific
specific example
specific examples
spinet
thianthrene
7-diacetyl
anode
anodes
aqueous electrolyte
batteries
battery
carbon
cathode
cells
chemical
compounds
compounds consisting
consisting
derivatives
dissolved
electrode
electrodes
electrolytes
example
examples
features
limn
lithium
lithium metal
lithium-ion
metal
negative
negative electrode
negative electrodes
non-aqueous
non-aqueous electrolytes
overcharge
overcharge protection
particular
positive
positive electrode
protection
provide
provide overcharge
reagents
rechargeable
rechargeable battery
redox
redox shuttle
secondary
secondary batteries
shuttle
specific
specific example
specific examples
spinet
thianthrene