AQUEOUS SOLUTION OF THERMALLY CROSSLINKABLE BINDER FOR LITHIUM ION BATTERY, ELECTRODE SLURRY FOR LITHIUM ION BATTERY AND MANUFACTURING METHOD THEREOF, ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY

To provide an aqueous solution of a thermally crosslinkable binder for a lithium ion battery, an electrode slurry for a lithium ion battery and a manufacturing method thereof, an electrode for a lithium ion battery, and a lithium ion battery.SOLUTION: An aqueous solution of a thermally crosslinkable binder for a lithium ion battery includes hydroxyl group-containing water-soluble poly (meth) acrylamide (A) having a gel fraction of at least 20% of a cured product, which is a polymer of a monomer group containing 30 to 95 mol% of the (meth) acrylamide group-containing compound (a) and 5 to 50 mol% of the hydroxyl group-containing (meth) acrylic ester (b) for 100 mol% of the monomer group.SELECTED DRAWING: None 【課題】リチウムイオン電池用熱架橋性バインダー水溶液、リチウムイオン電池用電極スラリー及びその製造方法、リチウムイオン電池用電極、並びにリチウムイオン電池を提供すること。【解決手段】本開示は、単量体群１００モル％に対して、（メタ）アクリルアミド基含有化合物（ａ）を３０〜９５モル％、水酸基含有（メタ）アクリルエステル（ｂ）を５〜５０モル％含む単量体群の重合物であり、硬化物のゲル分率が２０％以上である、水酸基含有水溶性ポリ（メタ）アクリルアミド（Ａ）を含む、リチウムイオン電池用熱架橋性バインダー水溶液を提供する。【選択図】なし