ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE

Abstract: an active material layer includes a first active material and a second active material, and a gram capacity of the first active material is greater than a gram capacity of the second active material. the active material layer has a first surface facing away from the current collector, the first surface is provided with a plurality of pore structures, and a ratio of a volume of all of the plurality of pore structures to a volume of the active material layer is a, where 2%≤a≤20%. adding the first active material with a larger gram capacity can increase the capacity of the electrochemical apparatus. the pore structure can become a new lithium ion liquid phase transmission channel, and 2%≤a≤20%.

Inventor(s): Yuhan HU

CPC Classification: H01M4/364 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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