(JP8513772-X)      A binder for batteries comprises an aq. or non-aq. dispersion/powder of fine core-shell composite particles (A) having an average dia. of 0.05 and composed of a fibril forming polytetrafluoroethylene as the core and a non-fibril-forming polymer as the shell in a wt. ratio of the core to the shell or 98:2-50:50. Also claimed are: (1) a compsn. for electrodes contg. 0.1-10 wt.% of (A) and the rest electrode materials; and (2) a non-aq. electrolyte battery comprising a non-aq. electrode and a positive electrode comprising conductive agent contg. Li cpds. as the activating material integrated by the above binder.    ADVANTAGE -   The binder can resist the negative effects of water.    (US5707763-A)      A binder for batteries comprises an aq. or non-aq. dispersion/powder of fine core-shell composite particles (A) having an average dia. of 0.05 and composed of a fibril forming polytetrafluoroethylene as the core and a non-fibril-forming polymer as the shell in a wt. ratio of the core to the shell or 98:2-50:50. Also claimed are: (1) a compsn. for electrodes contg. 0.1-10 wt.% of (A) and the rest electrode materials; and (2) a non-aq. electrolyte battery comprising a non-aq. electrode and a positive electrode comprising conductive agent contg. Li cpds. as the activating material integrated by the above binder.    ADVANTAGE -   The binder can resist the negative effects of water.    (EP735093-B1)      A binder for batteries comprises an aq. or non-aq. dispersion/powder of fine core-shell composite particles (A) having an average dia. of 0.05 and composed of a fibril forming polytetrafluoroethylene as the core and a non-fibril-forming polymer as the shell in a wt. ratio of the core to the shell or 98:2-50:50. Also claimed are: (1) a compsn. for electrodes contg. 0.1-10 wt.% of (A) and the rest electrode materials; and (2) a non-aq. electrolyte battery comprising a non-aq. electrode and a positive electrode comprising conductive agent contg. Li cpds. as the activating material integrated by the above binder.    ADVANTAGE -   The binder can resist the negative effects of water.