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US 8,426,058 B2Granted
Metal-resin composite and method
AssigneeBYD Company Limited
InventorsQing Gong, Liang Zhou, Xinkun Lv
Life of this patent
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Abstract
A metal-resin composite comprises a metal substrate with concavities in the surface, a first coating layer on the surface of the metal substrate, a second coating layer on the first coating layer, and a third coating layer on the second coating layer. The first coating layer fills the concavities and covers the surface of the substrate.
Claims17
A metal-resin composite comprising:
- a metal substrate having concavities in the surface;
- a first coating layer on the surface of the metal substrate;
- wherein the first coating layer fills concavities and covers the surface of the substrate;
- and the first coating layer comprises a polyphenylene sulfide resin and titanium dioxide particles;
- a second coating layer on the first coating layer;
- wherein the second coating layer comprises a polyphenylene sulfide resin, a fluorinated ethylene-propylene copolymer, and titanium dioxide particles;
- and
- a third coating layer on the second coating layer;
- wherein the third coating layer comprises an inorganic material, and a polymer selected from the group consisting of polyphenylene sulfide resins, tetrafluoroethene-perfluoroalkyl vinyl ether copolymers, and combinations thereof.
6 more elements
A method for preparing a metal-resin composite, comprising:
- etching the surface of a metal substrate;
- preparing a slurry, wherein the slurry comprises a polyphenylene sulfide resin and titanium dioxide particles;
- applying the slurry on the surface of the metal substrate;
- calcining the metal substrate to form a first precast composite;
- preparing a mixture, wherein the mixture comprises a polyphenylene sulfide resin, a fluorinated ethylene-propylene copolymer, and titanium dioxide particles;
- applying the mixture onto the precast composite;
- calcining the first precast composite to form a second precast composite;
- and
- applying a polymer comprising an inorganic material onto the second precast composite by an injection molding process to form a metal-resin composite;
- wherein the polymer is selected from the group consisting of polyphenylene sulfide resins, tetrafluoroethene-perfluoroalkyl vinyl ether copolymers, and combinations thereof.
7 more elements
A battery comprising:
- a shell;
- a core displaced in the shell;
- an electrolyte;
- and
- a cover plate closing the shell;
- wherein the cover plate comprising:
- a metal substrate having concavities in the surface;
- a first coating layer on the surface of the metal substrate;
- wherein the first coating layer fills concavities and covers the surface of the substrate;
- and the first coating layer comprises a polyphenylene sulfide resin and titanium dioxide particles;
- a second coating layer on the first layer,
- wherein the second coating layer comprises a polyphenylene sulfide resin, a fluorinated ethylene-propylene copolymer, and titanium dioxide particles;
- and
- a third coating layer on the second layer,
- wherein the third coating layer comprises an inorganic material, and a polymer selected from the group consisting of polyphenylene sulfide resins, tetrafluoroethene-perfluoroalkyl vinyl ether copolymers, and combinations thereof.
12 more elements
Dependencies are inferred from the claim text.