Secondary battery, battery pack, vehicle, and stationary power supply
AssigneeKabushiki Kaisha Toshiba
InventorsHayato Seki, Wataru Uno, Yasuyuki Hotta, Shinsuke Matsuno
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Abstract
A secondary battery includes a positive electrode, a first aqueous electrolyte held on the positive electrode, a negative electrode, a second aqueous electrolyte held on the negative electrode, and a separator interposed between the positive electrode and the negative electrode. A difference between an osmotic pressure (N/m2) of the first aqueous electrolyte and an osmotic pressure (N/m2) of the second aqueous electrolyte is 90% or less (including 0%) of the higher one of the osmotic pressure of the first aqueous electrolyte and the osmotic pressure of the second aqueous electrolyte.
Claims13
A secondary battery comprising:
- a positive electrode;
- a first aqueous electrolyte held on the positive electrode;
- a negative electrode;
- a second aqueous electrolyte held on the negative electrode;
- and
- a separator interposed between the positive electrode and the negative electrode,
- wherein a difference between an osmotic pressure (N/m2) of the first aqueous electrolyte and an osmotic pressure (N/m2) of the second aqueous electrolyte is 90% or less (including 0%) of the higher one of the osmotic pressure of the first aqueous electrolyte and the osmotic pressure of the second aqueous electrolyte.
Dependencies are inferred from the claim text.