Secondary battery containing organoborate electrolyte

Patent · Tue Jun 11 04:00:00 EDT 1985

OSTI ID:6473180

Shacklette, L W

Secondary batteries with conjugated polymer anodes, such as polyacetylene, contain an electrolyte including a salt of the formula MB/sub 4//sub -/ /SUB w/ /sub -/ /SUB y/ /sub -/ /SUB z/ R' /SUB w/ R'' /SUB y/ X /SUB z/ wherein M is an alkali metal, B is boron, R is alkyl, R' is aryl or alkyl-substituted aryl, R'' is heterocycle, X is F, Cl, Br, I, CN, OCN, SCN, fluoroaryl or perfluoroalkyl-substituted aryl, w and y are integers of 0 to 4, and z is an integer of 0 to 4, provided that when X is solely F, Cl, I, Br, CN, OCN, SCN or perfluororalkyl, Z is not 4; with the sum x+y+z being equal to or less than 4. Exemplary salts are LiBMe/sub 4/, LiBMe/sub 2/Ph/sub 2/, LiBMe/sub 2/PhPy, LiBMe/sub 2/P /SUB y/ 2 and KBPh/sub 3/SCN (where M=methyl, Ph=phenyl and Py=pyrrolyl). Cathodes such as conjugated backbone polymers (e.g. polyacetylene) and transition-metal chalcogenides (e.g. TiS/sub 2/) are disclosed. The battery can be charged to a state wherein the anode is in a reduced state of 0.1 V-0.5 V (relative to M/M+) where a voltage plateau exists in some instances.

• Assignee: Allied Corp.
• Patent Number(s): US 4522901
• OSTI ID: 6473180
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ACETYLENE
ALKALI METALS
ALKYNES
ANODES
BATTERY CHARGING
BORON COMPOUNDS
BROMINE
CHALCOGENIDES
CHEMICAL COMPOSITION
CHLORINE
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
FLUORINE
HALOGENS
HYDROCARBONS
IODINE
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYACETALS
POLYMERS
SALTS
SULFIDES
SULFUR COMPOUNDS
TITANIUM COMPOUNDS
TITANIUM SULFIDES
TRANSITION ELEMENT COMPOUNDS