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US 12,586,793 B2Granted
Electrochemical device and electronic device
AssigneeNingde Amperex Technology Limited
InventorHanxiang Zhang
Life of this patent
Estimating the term…
Abstract
An electrochemical device includes a negative active material layer and an electrolyte. The negative active material layer comprises hard carbon. The negative active material layer has a porosity of 20% to 60%. The electrolyte has a conductivity of 8 mS/cm to 14 mS/cm.
Claims16
An electrochemical device, comprising:
- a negative electrode active material layer comprising a negative electrode active material, and an electrolyte;
- wherein, the negative electrode active material is hard carbon having a specific surface area of 2 m2/g to 8 m2/g and a volume-based Dv99 of 12 μm to 30 μm;
- the negative electrode active material layer has a porosity of 20% to 60%;
- and
- the electrolyte has a conductivity of 8 mS/cm to 14 mS/cm.
2 more elements
An electronic device comprising an electrochemical device, wherein,
- the electrochemical device comprises a negative electrode active material layer comprising a negative active material, and an electrolyte;
- the negative electrode active material is hard carbon having a specific surface area of 2 m2/g to 8 m2/g and a volume-based Dv99 of 12 μm to 30 μm;
- the negative electrode active material layer has a porosity of 20% to 60%;
- and
- the electrolyte has a conductivity of 8 mS/cm to 14 mS/cm.
2 more elements
Dependencies are inferred from the claim text.