Nonaqueous electrolytic liquid and nonaqueous electrolyte secondary battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKazuko ASANO, Yukihiro OKI, Atsuro SHIRAKAMI
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Abstract
A nonaqueous electrolyte solution according to the present disclosure includes a nonaqueous solvent, an electrolyte dissolved in the nonaqueous solvent, and particles of an oxide insoluble in the nonaqueous solvent. The nonaqueous electrolyte solution according to the present disclosure has fluidity at 25° C. A molar mass of the oxide is 50 g/mol or more. An average particle diameter of the particles of the oxide is 1 nm or more and 500 nm or less. A secondary battery 100 according to the present disclosure includes a positive electrode 5, a negative electrode 6, and the nonaqueous electrolyte solution according to the present disclosure.
Claims12
A nonaqueous electrolyte solution comprising:
- a nonaqueous solvent;
- an electrolyte dissolved in the nonaqueous solvent;
- and
- particles of an oxide insoluble in the nonaqueous solvent, wherein
- the nonaqueous electrolyte solution has fluidity at 25° C.,
- a molar mass of the oxide is 50 g/mol or more, and
- an average particle diameter of the particles is 1 nm or more and 500 nm or less, and
- a content of the particles in the nonaqueous electrolyte solution is 0.1 vol % or more and 10 vol % or less.
(canceled)
A nonaqueous electrolyte secondary battery comprising:
- a positive electrode comprising a positive electrode current collector and a positive electrode active material layer provided on the positive electrode current collector, the positive electrode active material layer comprising a positive electrode active material;
- a negative electrode;
- and
- a nonaqueous electrolyte solution, wherein
- the positive electrode active material comprises secondary particles formed by agglomeration of primary particles,
- the nonaqueous electrolyte solution comprises:
- a nonaqueous solvent;
- an electrolyte dissolved in the nonaqueous solvent;
- and
- particles of an oxide insoluble in the nonaqueous solvent,
- the nonaqueous electrolyte solution has fluidity at 25° C.,
- a molar mass of the oxide is 50 g/mol or more, and
- an average particle diameter of the particles of the oxide is 25% or less relative to an average particle diameter of the secondary particles.
Dependencies are inferred from the claim text.