abstract |
A secondary cell negative electrode including a negative electrode active material, a binder, and a water-soluble polymer, wherein the water-soluble polymer includes 15 wt%-50 wt% ethylenically unsaturated carboxylic acid monomer units, 30 wt%-70wt% (meth)acrylic acid ester monomer units, and 0.5 wt%-10 wt% fluorine-containing (meth)acrylic acid ester monomer units. |