THERMAL CROSSLINKING BINDER AQUEOUS SOLUTION FOR LITHIUM ION BATTERY, THERMAL CROSSLINKING SLURRY FOR LITHIUM ION BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY

To provide a thermal crosslinking binder aqueous solution for a lithium ion battery, a thermal crosslinking slurry for a lithium ion battery negative electrode, a negative electrode for a lithium ion battery, and a lithium ion battery.SOLUTION: A thermal crosslinking binder aqueous solution for a lithium ion battery is provided according to a disclosure hereof. The thermal crosslinking binder aqueous solution for a lithium ion battery comprises: a water-soluble poly(meth)acryl amide(A) including 2-60 mol% of a constituting unit originating from a (meth)acryl amide group-containing compound (a), and 10-50 mol% of a constituting unit originating from one or more unsaturated acids selected from a group consisting of an unsaturated carboxylic acid and an unsaturated sulfonic acid, or an inorganic salt (b) thereof; and 0.5-30 mol% of metal ions having a valence of 2 or greater to 100 mol% of acid groups that the component (b) has.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負極用熱架橋性スラリー、リチウムイオン電池用負極、及びリチウムイオン電池を提供すること。【解決手段】本開示は、（メタ）アクリルアミド基含有化合物（ａ）に由来する構成単位を２〜６０モル％、及び不飽和カルボン酸、及び不飽和スルホン酸からなる群から選択される１つ以上の不飽和酸又はその無機塩（ｂ）に由来する構成単位を１０〜５０モル％含む、水溶性ポリ（メタ）アクリルアミド（Ａ）並びに、２価以上の金属イオンを前記（ｂ）成分が有する酸基１００モル％に対し０．５〜３０モル％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