The present application provides a negative electrode plate comprising a substrate, which comprises a current collector and negative electrode active material bonded on the current collector; first lithium bands arranged on a front surface of the substrate...

Provided are a power battery pack and an electrical apparatus. The power battery pack includes a supporting plate and a module. The supporting plate is provided with a pressure relief groove, the pressure relief groove has a plurality of pressure relief ca...

The present application discloses a battery pack, comprising a housing, a battery cell and cooling liquid, wherein the housing delimits an accommodating cavity, the housing has a side wall; the battery cell is arranged in the accommodating cavity; and the ...

Provided is a method for preparing a layered positive electrode material, comprising the following steps: (1) mixing layered nickel cobalt manganese hydroxide with a lithium source, carrying out primary sintering in an oxygen atmosphere, pulverizing and si...

A cobalt-free positive electrode material, a preparation method therefor, and an application thereof. The preparation method comprises: mixing a lithium source, a cobalt-free precursor NixMny(OH)2, a nickel source, and a manganese source, performing primar...

Provided in the present disclosure are a cobalt-free high-nickel positive electrode material, a preparation method therefor and use thereof. The cobalt-free high-nickel positive electrode material comprises a cobalt-free high-nickel matrix material and a c...