2results about How to "Speed ​​up the preparation process" patented technology

This utility model discloses a power module heat dissipation module and an automotive power supply, relating to the field of automotive power supplies. The power module heat dissipation module includes a mounting assembly and multiple heat-generating devices. The mounting assembly includes a first circuit board and a second circuit board arranged opposite each other and spaced apart. The side of the first circuit board facing the second circuit board is a first mounting surface, and the side of the second circuit board facing away from the first mounting surface is a second mounting surface. The first end face of each heat-generating device is connected to either the first or second mounting surface, and the second end face of each heat-generating device is flush with the same plane. This utility model aims to simplify the water channel structure and reduce the risk of leakage.

The present application relates to a resin-assisted gradient-doped LMFP positive electrode material, a preparation method and a positive electrode, the preparation method comprising: mixing a sulfonic acid type cation exchange resin with a mixed salt solution, loading metal ions on the sulfonic acid type cation exchange resin, washing to obtain a loaded resin; heat treating the loaded resin to uniformly disperse metal oxides, and then mixing with a phosphoric acid solution to obtain a mixed solution; the mixed solution is dried by spray drying to obtain a precursor powder; mixing a lithium source, a nitrogen-doped carbon source and the precursor powder, and wetting with a glucose solution to form a slurry mixture; after the slurry mixture is dried, sintering is performed to obtain the resin-assisted gradient-doped LMFP positive electrode material. The present application can inhibit the Jahn-Teller distortion of Mn, and improve the cycle stability and conductivity of the positive electrode material.