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US 12,394,794 B2Granted
Positive electrode active material, high-temperature operation type lithium-ion polymer secondary battery, high-temperature operation type lithium ion inorganic all-solid-state secondary battery
AssigneeSumitomo Metal Mining Co., Ltd.
InventorsKouji Oono, Satoru Oshitari, Shinichi Tanaka
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Abstract
A positive electrode active material that is used in a high-temperature operation type lithium ion solid secondary battery, wherein the positive electrode active material is made of oxide particles, which contains a first transition element and does not include an alkali metal.
Claims6
A high-temperature operation type lithium-ion polymer secondary battery comprising:
- a positive electrode containing a positive electrode mixture layer that is used in a high-temperature operation type lithium ion solid secondary battery,
- wherein the positive electrode mixture layer comprises oxide particles;
- an ion conductive polymer electrolyte or an inorganic solid electrolyte;
- and a conductive auxiliary agent,
- wherein the oxide particles are made of a compound represented by a general formula MyOz
- wherein M is at least one selected from the group consisting of Sc, Ti, Mn, Fe, Co, Ni, and Cu, 1≤y≤3, and 1≤z≤4, wherein y is 3 and z is 4 when M is Mn, and
- wherein an average particle diameter of the oxide particles is 14 μm to 50 μm;
- a negative electrode containing lithium;
- and
- an ion conductive polymer electrolyte located between the positive electrode and the negative electrode.
7 more elements
A high-temperature operation type lithium ion inorganic all-solid-state secondary battery comprising:
- a positive electrode containing a positive electrode mixture layer that is used in a high-temperature operation type lithium ion solid secondary battery,
- wherein the positive electrode mixture layer comprises oxide particles;
- an ion conductive polymer electrolyte or an inorganic solid electrolyte;
- and a conductive auxiliary agent,
- wherein the oxide particles are made of a compound represented by a general formula MyOz
- wherein M is at least one selected from the group consisting of Sc, Ti, Mn, Fe, Co, Ni, and Cu, 1≤y≤3, and 1≤z≤4, wherein y is 3 and z is 4 when M is Mn, and
- wherein an average particle diameter of the oxide particles is 14 μm to 50 μm;
- a negative electrode containing lithium;
- and
- an inorganic solid electrolyte located between the positive electrode and the negative electrode.
7 more elements
Dependencies are inferred from the claim text.