Title:
BATTERY, BATTERY PACK AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/073960
Kind Code:
A1
Abstract:
Provided in the present application are a battery, a battery pack and an electric device. The battery comprises: an electrolyte solution, which comprises a cyclic organic solvent and a linear organic solvent, wherein the conductivity σ of the electrolyte solution satisfies σ=kγ×γ2+kviscosity×μ0-kconductivity, where γ is the mass ratio of the cyclic organic solvent to the linear organic solvent in the electrolyte solution, kγ is a constant of γ, -3.1 ≤ kγ ≤ -2.5, kviscosity is the viscosity constant of the electrolyte solution, 4.6 ≤ kγ ≤ 5.8, kconductivity is the correction coefficient of the conductivity of the electrolyte solution, 0.16 ≤ kγ ≤ 0.39, and μ0 is the viscosity of the electrolyte solution at 25°C; a positive electrode sheet, which is at least partially immersed in the electrolyte solution; a separator, which is located on one side of the positive electrode sheet and is immersed in the electrolyte solution; and a negative electrode sheet, which is disposed on the side of the separator away from the positive electrode sheet and is at least partially immersed in the electrolytic solution. The electrolyte solution of the present application has a faster solution charging speed during the filling of same, and has an infiltration effect on a positive electrode active material layer and a negative electrode active material layer.
More Like This:
Inventors:
ZHOU WENYANG (CN)
Application Number:
PCT/CN2022/143994
Publication Date:
April 11, 2024
Filing Date:
December 30, 2022
Export Citation:
Assignee:
XIAMEN HITHIUM ENERGY STORAGE TECH CO LTD (CN)
International Classes:
H01M10/0569
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF: