US Patent No: 4,547,442

Number of patents in Portfolio can not be more than 2000

Lithium battery electrode frame

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Abstract

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Durable mechanical and electronic contact is achieved between the support frame of a battery electrode and its active material A, whose electro-chemical capacity is utilizable to a very high degree, by providing the base material M.sub.1 of the support frame, which is not itself capable of being alloyed with A, with a cover layer of a metal M.sub.2 that is capable of being alloyed with M.sub.1, as well as being capable of being alloyed with A. This results in an alloy region M.sub.1.M.sub.2, within which the alloying reaction with A comes to a halt. The contact region corresponds to the scheme M.sub.1 /M.sub.1.M.sub.2.A/A. Alternatively, the active material can itself be an alloy of M.sub.2 and A, in accordance with M.sub.1 /M.sub.1.M.sub.2.A/M.sub.2.A.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VARTA BATTERIE AKTIENGESELLSCHAFTHANOVER3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Besenhard, Jurgen O Neusass, DE 1 35
Fritz, Heinz P Garching, DE 4 44
Wudy, Erich Garching, DE 1 35

Cited Art Landscape

Patent Info (Count) # Cites Year
 
EXIDE CORPORATION (1)
* 4,456,666 Titanium wire reinforced lead composite electrode structure 1 1982
 
Exxon Research and Engineering Company (1)
* 4,264,690 Grid for a lithium electrode in a lithium organic electrolyte cell containing dioxolane 5 1980
 
MEDTRONIC, INC. (1)
* 4,307,162 Lithium alloy coating for anode collector in lithium batteries 6 1980
 
RAYOVAC CORPORATION (1)
* 4,434,213 Lithium anode 10 1982
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (23)
7,879,495 Medical device having lithium-ion battery 1 2004
7,811,705 Lithium-ion battery 5 2004
7,807,299 Lithium-ion battery 7 2004
7,682,745 Medical device having lithium-ion battery 9 2004
7,662,509 Lithium-ion battery 5 2004
7,641,992 Medical device having lithium-ion battery 9 2004
7,642,013 Medical device having lithium-ion battery 10 2004
7,582,387 Lithium-ion battery 17 2004
7,563,541 Lithium-ion battery 14 2004
7,337,010 Medical device having lithium-ion battery 55 2004
7,635,541 Method for charging lithium-ion battery 12 2005
8,105,714 Lithium-ion battery 3 2007
7,927,742 Negative-limited lithium-ion battery 5 2008
7,740,985 Lithium-ion battery 4 2009
7,875,389 Lithium-ion battery 4 2009
7,858,236 Lithium-ion battery 3 2009
7,794,869 Lithium-ion battery 3 2009
7,883,790 Method of preventing over-discharge of battery 3 2009
7,803,481 Lithium-ion battery 6 2009
7,931,987 Lithium-ion battery 1 2010
8,785,046 Lithium-ion battery 0 2010
8,178,242 Lithium-ion battery 0 2011
8,383,269 Negative-limited lithium-ion battery 1 2011
 
3M INNOVATIVE PROPERTIES COMPANY (4)
6,203,944 Electrode for a lithium battery 70 1998
6,255,017 Electrode material and compositions including same 26 1998
6,428,933 Lithium ion batteries with improved resistance to sustained self-heating 18 1999
6,436,578 Electrode compositions with high coulombic efficiencies 20 2000
 
MITSUBISHI CHEMICAL CORPORATION (4)
* 5,588,971 Current collector device and method of manufacturing same 35 1994
* 5,578,396 Current collector device 34 1995
* 5,591,544 Current collector device 42 1995
* 5,573,554 Current collector device and method of manufacturing same 4 1995
 
ENERSYS ADVANCED SYSTEMS INC. (2)
* 5,284,721 High energy electrochemical cell employing solid-state anode 57 1990
* 5,147,739 High energy electrochemical cell having composite solid-state anode 75 1990
 
CALIFORNIA INSTITUTE OF TECHNOLOGY (1)
* 4,820,596 Alkali metal-refractory metal biphase electrode for AMTEC 2 1987
 
RICOH COMPANY, LTD. (1)
* 5,162,178 Negative electrode for secondary battery 56 1990
* Cited By Examiner