Energy and Electronics Materials Laboratory
![Energy and Electronics Materials Laboratory](/sites/default/files/styles/crop_sei_cp_360/public/2021-01/Energy%20and%20Electronics%20Materials%20Laboratory.jpg?itok=ImsdVeMy)
We contributes to the development of products and technologies in the Group's extensive business fields by leveraging our core technologies for metal, inorganic, and polymer materials as well as electrochemistry.
![Oxygen fiber Copper wire](/sites/default/files/styles/crop_sei_cp_360/public/2020-12/Oxygen-free%20Copper%20wire_0.jpg?h=da50b071&itok=sJ3qyKMa)
![Small diameter copper alloy wire](/sites/default/files/styles/crop_sei_cp_360/public/2020-12/Small%20diameter%20copper%20alloy%20wire_0.jpg?h=245291fa&itok=T7MyJe-Y)
![Alminum wiring harness](/sites/default/files/styles/crop_sei_cp_360/public/2020-12/Alminum%20wiring%20harness.jpg?h=22d1c912&itok=9FA1ZHU_)
Metal and Inorganic Material Technology
Keywords: copper wire, continuous casting, plastic forming, composite materials, surface treatment, porous metal
We are developing copper alloy wires used for wiring harnesses contributing to vehicle light-weighting and manufacturing processes of oxygen-free copper wires for magnet wires for xEV, using our technologies for continuous casting and plastic forming.
![Tab leads for battery](/sites/default/files/styles/crop_sei_cp_360/public/2020-12/Tab%20leads%20for%20battery.png?h=0dbb6caf&itok=wZSy6LOO)
![Heat-resistant and anticorrosion Cermet](/sites/default/files/styles/crop_sei_cp_360/public/2020-12/Cermet.jpg?h=52d3819e&itok=GHD6YkY5)
![Ag-Dia heatspreader](/sites/default/files/styles/crop_sei_cp_360/public/2020-12/heatspreader.jpg?h=c28ed996&itok=iHgi7KKc)
Employing our composite material technologies, we are developing new materials designed to have well-balanced properties such as their thermal conductivity and expansion rate. Our plating technology has produced Celmet™, and we are currently developing Celmet™ composed of various alloys. This technology is also used for surface treatment of tab leads and heatspreader.
Polymer Material Technology
Keywords: polymer synthesis, resin formulation, polymer alloy, nano-composite
Employing polymer synthesis and resin formulation technologies, we have been developing a wide array of products such as electric wires and cables in the fields of environment and energy, electronics, and automotive, as well as magnet wires for environment-friendly vehicles.
We are also working on the development of newly functional and high performance polymer materials through nano-sized material structure control (polymer alloy and nano-composite).
![Polymer material technology](/sites/default/files/styles/crop_sei_cp_1108x544/public/2020-12/products/map_image/Polymer%20material%20technology.jpg?itok=Qy9sB7cS)
![magnet wire cable PTFE](/sites/default/files/styles/crop_sei_cp_1108x544/public/2020-12/products/map_image/magnet_wire%20cable_PTFE.jpg?itok=eMaIwaJO)
Fine Circuit Fabrication Technology
Keywords: flexible printed circuit, fine pich, high aspect
To accommodate the need for high-density and fine circuits, we are developing fine circuit products based on our unique material, plating, and process technology. We are also working on their application to our electronics products.
![fine circuit fabrication technilogy](/sites/default/files/styles/crop_sei_cp_1108x544/public/2020-12/products/map_image/fine%20circuit%20fabrication%20technilogy.jpg?itok=jqtYHA_a)