Nonaqueous electrolyte-secondary battery
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United States of America Patent
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Dec 26, 1995
Grant Date -
N/A
app pub date -
Apr 28, 1994
filing date -
Apr 28, 1993
priority date (Note) -
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Abstract
A lithium ion type nonaqueous electrolyte-secondary battery which comprises a positive electrode which comprises, as an active material, a compound oxide represented by the following chemical formula (I): Li.sub.x A.sub.y M.sub.z J.sub.m O.sub.p (I) wherein A represents at least one alkali element selected from the group consisting of Na and K; M represents at least one transition element selected from the group consisting of Co, Mn and Ni; J represents an element having a glass-forming ability selected from the group consisting of B, Si, Ge, P, V, Zr, Sb and Ti; 0.8.ltoreq.x.ltoreq.1.3; 0.ltoreq.y.ltoreq.0.2; 0.8.ltoreq.z.ltoreq.2.0; 0.01.ltoreq.m.ltoreq.0.2; and 2.0.ltoreq.p.ltoreq.2.7; a negative electrode; and a nonaqueous electrolyte. The positive electrode-active material permits the production of nonaqueous electrolyte lithium type secondary batteries having excellent charge-discharge characteristics, discharge voltages and cycle properties.
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