Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1992-07-20
1994-05-31
Springer, David B.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
429221, 429223, 429224, 429197, H01M 614, H01M 616
Patent
active
053168755
ABSTRACT:
There is provided a secondary battery comprising a positive and a negative electrode and a nonaqueous electrolyte. The positive electrode is made by dipping an electrode comprising a positive active material such as LiMn.sub.2 O.sub.4, LiMnO.sub.2, LiCoO.sub.2, LiNiO.sub.2, LiFeO.sub.2 or .gamma.LiV.sub.2 O.sub.5, in a solution containing butyllithium, phenyllithium, or naphthyllithium. The negative electrode of the battery absorbs and desorbs lithium by charging and discharging, and the nonaqueous electrolyte contains a lithium salt. Also provided is a method of manufacturing a secondary battery comprising a nonaqueous electrolyte. The method comprises the steps of preparing an electrode group containing a positive electrode of LiMn.sub.2 O.sub.4, LiMnO.sub.2, LiCoO.sub.2, LiNiO.sub.2, LiFeO.sub.2 or .gamma.-LiV.sub.2 O.sub.5, as the active material, and a negative electrode which absorbs and desorbs lithium by charging and discharging, with a separator therebetween. The group is placed in a battery case, and to the case is added a solution containing butyllithium etc. The solution is removed and an organic electrolyte as a nonaqueous electrolyte is added to the battery case.
REFERENCES:
patent: H829 (1990-10-01), Behl
patent: 3844837 (1974-10-01), Bennion
patent: 4160070 (1979-07-01), Gabano
patent: 4450214 (1984-05-01), Davis
patent: 4464447 (1984-08-01), Lazzari
patent: 4786499 (1988-11-01), Slane et al.
Bito Yasuhiko
Hasegawa Masaki
Ito Shuji
Murai Hiroyuki
Toyoguchi Yoshinori
Matsushita Electric - Industrial Co., Ltd.
Springer David B.
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