Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means – For charge or liquid level
Patent
1992-09-02
1994-01-11
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
With measuring, testing, or indicating means
For charge or liquid level
429191, 429194, 429218, H01M 1048
Patent
active
052780007
ABSTRACT:
A cathode additive is provided for protecting an ambient temperature secondary lithium cell from over-charging or over-discharging. The cathode additive is chosen to create an upper voltage plateau which is slightly higher than a characteristic charge cutoff voltage of the cathode of the cell. The cathode additive additionally creates a lower voltage plateau which is slightly lower than the characteristic discharge cutoff voltage of the cell. Preferably the cathode additive is a transition metal oxide or a sulfide may, for example, include a mixture of Li.sub.2 Mn.sub.2 O.sub.4 and Li.sub.0.1 MoO.sub.2.
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Attia Alan I.
Halpert Gerald
Huang Chen-Kuo
Surampudi Subbarao
Jones Thomas H.
Kusmiss John H.
Miller Guy M.
Skapars Anthony
The United States of America as represented by the Administrator
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