Electrode, nonaqueous electrolyte battery, and battery pack
AssigneeKabushiki Kaisha Toshiba
InventorsKeigo Hoshina, Yoshiyuki Isozaki, Hiroki Inagaki, Norio Takami
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Abstract
According to one embodiment, an electrode is provided. This electrode includes a current collector and an electrode layer formed on the current collector. The electrode layer contains an active material represented by LiMn1-x-yFexAyPO4 (where 0<x≤0.3, 0≤y≤0.1, and A is at least one selected from the group consisting of Mg, Ca, Al, Ti, Zn, and Zr). A pore diameter appearing at highest frequency in pore diameter distribution of the electrode layer obtained by mercury porosimetry falls within a range of 10 nm to 50 nm. A pore specific surface area of the electrode layer is from 12 m2/g to 30 m2/g.
Claims10
An electrode comprising:
- a current collector;
- and
- an electrode layer formed on the current collector and containing an active material represented by LiMn1-x-yFexAyPO4 (wherein 0<x≤0.3, 0≤y≤0.1, and A is at least one selected from the group consisting of Mg, Ca, Al, Ti, Zn, and Zr),
- wherein a pore diameter appearing at highest frequency in pore diameter distribution of the electrode layer obtained by mercury porosimetry falls within a range of 10 nm to 50 nm, and a pore specific surface area of the electrode layer is from 12 m2/g to 30 m2/g, and
- wherein a pore volume of the electrode layer is from 0.17 mL to 0.29 mL per 1 g of the electrode layer.
Dependencies are inferred from the claim text.