Showa Denko K.K. (SDK) and Showa Denko Packaging Co (SPA) has announced the volume production of carbon-coated aluminum foils capable of reducing electrical resistance of lithium-ion battery (LIB) electrodes, resulting in substantial improvement in quick charge/discharge performance, a requirement for collectors in automotive LIBs. The new aluminum foils with the trade name of SDX ™ can reduce the contact resistance by around 50% in comparison with conventional plain aluminum foils. SDX has been manufactured through coating plain aluminum foils with electrically conductive carbon, using company’s proprietary technology. Typically, LIB has a device that is called collector at each electrode for collecting and taking out electricity. Collector uses aluminum foils in its cathode and copper foils in its anode. The new product can increase adhesion to collectors by factor of 1.5 times to conventional level.
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