Claims
- 1. A method for manufacturing a nonaqueous electrolyte secondary cell comprising the steps of:
- a) providing LiMn.sub.2 O.sub.4 ;
- b) doping the LiMn.sub.2 O.sub.4 with lithium to produce a positive electrode active material of Li.sub.1+x Mn.sub.2 O.sub.4 wherein x>0; and
- c) combining the positive electrode material with a negative electrode active material and a nonaqueous electrolyte to form the nonaqueous electrolyte secondary cell.
- 2. A method according to claim 1, wherein the step of doping comprises chemical doping by reacting the LiMn.sub.2 O.sub.4 material with a lithium compound forming agent.
- 3. A method according to claim 1, wherein the step of doping comprises an electrochemical doping by placing the LiMn.sub.2 O.sub.4 in the presence of an organic electrolyte solution containing lithium and creating a discharge.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-271533 |
Oct 1990 |
JPX |
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Parent Case Info
This is a division, of application Ser. No. 07/772,787, filed Oct. 8, 1991 now abandoned.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
3756789 |
Alder et al. |
Sep 1973 |
|
4980251 |
Thackery et al. |
Dec 1990 |
|
5110696 |
Shokoohi et al. |
May 1992 |
|
5266299 |
Tarascon |
Nov 1993 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
3-84872 |
Jun 1993 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Rossouw et al., Mat. Res. Bull., vol. 25, pp. 173-182, 1990 "Structural Aspects of Lithium-Manganese-Oxide Electrodes for Rechargable Lithium Batteries". |
Divisions (1)
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Number |
Date |
Country |
Parent |
772787 |
Oct 1991 |
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