UNDERCOAT FOIL FOR ENERGY STORAGE DEVICE ELECTRODE

To provide an undercoat foil for an energy storage device electrode that provides a low-resistance energy storage device and is easy to control the finish during manufacture, an energy storage device electrode including the undercoat foil, and an energy storage device.SOLUTION: An undercoat foil for...

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Bibliographic Details
Main Authors SHIBANO YUUKI, HATANAKA TATSUYA, YOSHIMOTO TAKUJI
Format Patent
LanguageEnglish
Japanese
Published 22.08.2019
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Summary:To provide an undercoat foil for an energy storage device electrode that provides a low-resistance energy storage device and is easy to control the finish during manufacture, an energy storage device electrode including the undercoat foil, and an energy storage device.SOLUTION: An undercoat foil for an energy storage device electrode includes a current collector substrate and an undercoat layer formed on at least one surface of the current collector substrate, and the undercoat layer includes carbon nanotubes and a dispersant, and the infrared absorbance derived from the absorption of the carbonyl group of the organic component included in the undercoat layer measured by the P-polarization method for the undercoat layer is 0.017 or less, and the undercoat foil for an energy storage device electrode is used to produce an electrode structure with the undercoat foil by ultrasonic welding.SELECTED DRAWING: None 【課題】低抵抗なエネルギー貯蔵デバイスを与えるとともに、製造時に仕上がりを管理することが容易なエネルギー貯蔵デバイス電極用アンダーコート箔、該アンダーコート箔を備えたエネルギー貯蔵デバイス電極およびエネルギー貯蔵デバイスを提供する。【解決手段】集電基板と、この集電基板の少なくとも一方の面に形成されたアンダーコート層とを有するエネルギー貯蔵デバイス電極用アンダーコート箔であり、上記アンダーコート層が、カーボンナノチューブおよび分散剤を含み、かつ、上記アンダーコート層についてP偏光方式で測定した、当該アンダーコート層に含まれる有機成分のカルボニル基の吸収に由来する赤外吸光度が、0.017以下であることを特徴とする、超音波溶接によって当該アンダーコート箔を備える電極構造体を作製するために用いられるエネルギー貯蔵デバイス電極用アンダーコート箔。【選択図】なし
Bibliography:Application Number: JP20190071323