ELECTRODE PLATE, AND BATTERY

To provide an electrode plate capable of improving uniformity of peel strength while improving peel strength between an electrode layer and a current collector.SOLUTION: A disclosed electrode plate 1000 includes: a current collector 100 having a substrate 101 and a coating layer 102 coating the subs...

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Bibliographische Detailangaben
Hauptverfasser: OSHIMA TATSUYA, NISHIDA KOJI, IWASAKI MASAHIRO, KAWAKAMI TAKASHI, TSUJI NOBUHIRO, ISHII YASUO, MURATA MANABU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide an electrode plate capable of improving uniformity of peel strength while improving peel strength between an electrode layer and a current collector.SOLUTION: A disclosed electrode plate 1000 includes: a current collector 100 having a substrate 101 and a coating layer 102 coating the substrate 101; and an electrode layer 110 placed over the current collector 100. The coating layer 102 contains a conductive carbon 103 and a first binder 104. The electrode layer 110 contains a second binder 113. The second binder 113 contains a styrene-based elastomer in which a mole fraction of repeating units derived from styrene is 0.12 or more and a total nitrogen content is 120 mass ppm or more and 400 mass ppm or less.SELECTED DRAWING: Figure 1 【課題】電極層と集電体との剥離強度に加え、剥離強度の均一性を向上させることに適した電極板を提供する。【解決手段】本開示の電極板1000は、基板101および基板101を被覆する被覆層102を有する集電体100と、集電体100上に配置された電極層110と、を備え、被覆層102は、導電性カーボン103と第1バインダー104とを含み、電極層110は、第2バインダー113を含み、第2バインダー113は、スチレンに由来する繰り返し単位のモル分率が0.12以上、かつ、全窒素量が120質量ppm以上400質量ppm以下であるスチレン系エラストマーを含む。【選択図】図1