US2003211383A1PendingUtilityA1

Primary lithium batteries

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Assignee: LITHIUM POWER TECHNOLOGIES INCPriority: May 9, 2002Filed: May 9, 2002Published: Nov 13, 2003
Est. expiryMay 9, 2022(expired)· nominal 20-yr term from priority
Inventors:M. Zafar A. MunshiFazlil Coowar
H01M 6/36H01M 6/181H01M 4/405H01M 6/162H01M 2300/0082H01M 4/5835H01M 2300/0025H01M 2300/0048H01M 6/5038
44
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Claims

Abstract

A thermal battery for operation at temperatures below about 250° C. and preferably not above about 200° C. includes a primarily CF x cathode, an electrolyte, and a lithium-based anode. The electrolyte is an organoborate lithium salt or an ionically conductive solid polymer electrolyte.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A thermal battery for operation at temperatures below about 250° C., comprising: 
 a primarily CF x  cathode, a solid electrolyte, and a lithium-based anode.  
 
     
     
         2 . The thermal battery of  claim 1 , wherein the cathode includes CF x , conductive carbon and electrolyte in the ratio of 50-85% CF x , 5-15% conductive carbon, and 5-15% electrolyte.  
     
     
         3 . The thermal battery of  claim 1 , wherein the electrolyte is an organoborate lithium salt.  
     
     
         4 . The thermal battery of  claim 1 , wherein the solid electrolyte is an ionically conductive polymer electrolyte.  
     
     
         5 . The thermal battery of  claim 1 , wherein the anode is a lithium alloy.  
     
     
         6 . The thermal battery of  claim 5 , wherein the anode is a lithium-silicon alloy.  
     
     
         7 . The thermal battery of  claim 5 , wherein the anode is graphitic.  
     
     
         8 . The thermal battery of  claim 7 , wherein the anode is a lithium ion intercalating carbon electrode.  
     
     
         9 . The thermal battery of  claim 3 , wherein the organoborate lithium salt comprises lithium bis(oxalato)borate (C 4 O 8 BLi) (or LiBOB) salt.  
     
     
         10 . The thermal battery of  claim 3 , wherein the organoborate lithium salt comprises an aromatic bis[bidentate] borate.  
     
     
         11 . The thermal battery of  claim 3 , wherein the organoborate lithium salt comprises a non-aromatic bis[chelato] borate.  
     
     
         12 . The thermal battery of  claim 3 , wherein the organoborate lithium salt comprises one of a mono [bidentate] borate, a tridentate borate, or a tetradentate borate.  
     
     
         13 . The thermal battery of  claim 3 , wherein the organoborate lithium salt comprises a chelated borate anion of tetrahedron structure, with no acidic hydrogen.  
     
     
         14 . The thermal battery of  claim 3 , wherein the cathode includes CF x , conductive carbon and electrolyte in the ratio of 50-85% CF x , 5-15% conductive carbon, and 5-15% electrolyte.  
     
     
         15 . The thermal battery of  claim 14  wherein the anode is a lithium alloy.  
     
     
         16 . The thermal battery of  claim 14  wherein the anode is a lithium ion intercalating carbon electrode.  
     
     
         17 . The thermal battery of  claim 4 , wherein the polymer electrolyte is polyethylene oxide (PEO) based.  
     
     
         18 . The thermal battery of  claim 1 , wherein the anode is lithium metal.  
     
     
         19 . The thermal battery of  claim 1 , wherein the thermal battery is adapted for operation at temperatures not greater than about 200° C.  
     
     
         20 . The thermal battery of  claim 1 , including thin film heating elements in place of a pyrotechnic device to heat the battery.  
     
     
         21 . The thermal battery of  claim 1 , wherein the components of the battery are structured to render the battery flexible.  
     
     
         22 . A thermal battery adapted to operate at temperatures below about 250° C., comprising a cathode composed primarily of carbon monofluoride (CF x ), a lithium-based anode, and a halogen-free, highly conductive, molten organoborate salt electrolyte.  
     
     
         23 . A thermal battery adapted to operate at temperatures below about 250° C., comprising a cathode composed primarily of carbon monofluoride (CF x ), a lithium-based anode, and an ionically conductive solid polymer electrolyte.

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