Provided are: slurries for a lithium-ion secondary cell electrode having an excellent binding performance between active materials and between the active materials and a current collector; electrodes in which the slurries are used; and a lithium-ion secondary cell in which the electrodes are used, the lithium-ion secondary cell having both a high initial discharge capacity and superior charge-discharge cycle characteristics at high temperatures. The present invention relates to slurries for a lithium-ion secondary cell electrode, the slurries being obtained using a binder for a cell electrode and an active material and having a pH of 3.0-6.0. Preferably, the binder for a cell electrode is contained at 0.2-4.0 mass% in relation to the active material.