Secondary cell having a lithium intercolating manganese oxide
AssigneeGeneral Motors Corporation
InventorGholam-Abbas Nazri
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Abstract
A secondary lithium ion cell having an anode, a cathode and a nonaqueous electrolyte wherein the cathode comprises sub-micron-size amorphous, microporous, lithium-intercalateable manganese oxide having an internal surface area greater than about 100 m.sup.2 /g. The cathode may include an electrically conductive lithium-intercalateable polymer binder. A sol-gel process for making the amorphous quatravalent manganese oxide is disclosed.
Claims6
In a secondary lithium-ion cell comprising an anode, a cathode and a non-aqueous, lithium-ion conducting electrolyte between said anode and cathode, the improvement wherein said cathode comprises submicron-size, amorphous, microporous, lithium-intercalateable, quatravalent, manganese oxide particles supported on an electrical conductor, said particles having an internal surface area greater than about 100 m.sup.2 /g.
In a secondary lithium-ion cell comprising an anode, a cathode and a non-aqueous, lithium-ion conducting electrolyte between said anode and cathode, the improvement wherein said cathode comprises submicron-size, amorphous, microporous, lithium-intercalateable, quatravalent, manganese oxide particles supported on an electrical conductor and bound together by an electrically conductive, lithium-intercalateable, polymer, said particles having an internal surface area greater than about 100 m.sup.2 /g.
Dependencies are inferred from the claim text.