POSITIVE ELECTRODE MIXTURE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY ARRANGED BY USE THEREOF, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

To provide: a positive electrode mixture which is superior in the easiness of mold release from a mold; and a technique for efficiently obtaining nonaqueous electrolyte secondary batteries, each having a positive electrode arranged by use of the positive electrode mixture.SOLUTION: A positive electrode mixture for a coin type nonaqueous electrolyte secondary battery according to the present invention is a granular mixture comprising: a particulate positive electrode active material made of a transition metal composite oxide; and a conductive assistant; and a binding agent including a polytetrafluoroethylene(PTFE). The positive electrode active material of 90-95%, the conductive assistant of 3-8%, and the binding agent of 1.5-2.5% are included to a total mass of the mixture by mass. The positive electrode mixture is 75-500 μm in grain size and 35° or less in angle of repose.SELECTED DRAWING: Figure 1 【課題】本発明は、金型からの離型性に優れた正極合剤と該正極合剤からなる正極を備えた非水電解質二次電池を効率よく得ることができる技術の提供を目的とする。【解決手段】本発明に係るコイン形非水電解質二次電池用正極は、遷移金属複合酸化物からなる粒子状の正極活物質と、導電助剤と、ポリテトラフルオロエチレン（ＰＴＦＥ）からなる結着剤を含んでなる顆粒状の合剤であり、前記合剤の総質量に対し、質量％で、前記正極活物質が９０〜９５％、前記導電助剤が３〜８％、前記結着剤が１．５〜２．５％含まれるとともに、粒径が７５〜５００μｍ、安息角が３５°以下であることを特徴とする。【選択図】図１