Patent ID: 11936057
Assignee: NANO SHIELD TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 16:
17. A battery module with nano-composite coating, comprising:
a plurality of the battery packs, each battery pack including a plurality of batteries, each battery having a metal barrel body, two opposite ends of the metal barrel body of each battery being connected with two electrodes, an outer surface of the metal barrel body of each barrel-shaped battery being coated with a first nano coating composed of a first macromolecule waterproof coating;
a plurality of busbars mounted to the electrodes of the plurality of the batteries;
a plurality of wires connected among the plurality of the busbars, the plurality of the battery packs being connected in parallel, the plurality of the busbars and the electrodes of the plurality of the batteries connected to the plurality of the busbars and exposed outside being coated with a second nano coating, the second nano coating being formed by successively coating a second macromolecule waterproof coating and the first macromolecule waterproof coating on surfaces of each busbar and the electrodes of the plurality of the batteries connected to each busbar and exposed outside; and
at least one circuit board being coated with a third nano coating, the third nano coating being formed by successively coating a first solution, the first macromolecule waterproof coating, the second macromolecule waterproof coating, a third macromolecule waterproof coating and a second solution on the at least one circuit board, the plurality of the wires being soldered with each battery and7 each busbar, soldering positions among each wire, each battery and each busbar being coated with a fourth nano coating which is formed by coating the third macromolecule waterproof coating and the first macromolecule waterproof coating on the soldering positions among each wire, each battery and each busbar successively, the first macromolecule waterproof coating and the second macromolecule waterproof coating having different compositions, the first macromolecule waterproof coating and the third macromolecule waterproof coating having different compositions, and the first solution and the second solution having different compositions;
wherein the first macromolecule waterproof coating has a flowability larger than a flowability of the second macromolecule waterproof coating, the second macromolecule waterproof coating has a viscosity larger than a viscosity of the first macromolecule waterproof coating, the third macromolecule waterproof coating has a viscosity stronger than the viscosity of the second macromolecule waterproof coating, the third macromolecule waterproof coating is coated on tips, corners or other thinner portions of components of the at least one circuit board by a point-coating way, and the first, second, third and fourth nano coatings have different compositions.