Prismatic cell lithium-ion battery using lithium manganese oxide

Lithium-ion (Li-ion) batteries have demonstrated the ability to fulfill the energy storage needs of many new technologies. The most significant drawbacks of currently available technologies, such as LiCoO/sub 2/ based Li-ion cells, is their high cost and significant environmental hazards. Li-ion cells which use a lithium manganese oxide (LiMn/sub 2/O/sub 4/) spinel) based cathode material should be much less costly and safer than LiCoO/sub 2/ based cells. Performance data from prismatic design cells which use a LiMn/sub 2/O/sub 4/ based cathode material is presented and shown to meet many military performance criteria. The most significant drawback of this technology, at the present time, is the short cycle life.