abstract |
A non-aqueous electrolyte secondary battery (100) includes a positive electrode (30), a negative electrode (40), and a heat-resistant layer (51) disposed between the positive electrode and the negative electrode. The positive electrode (30) contains a positive electrode active substance (110) having a hollow structure. The positive electrode active substance (110) has a shell portion (115) and a hollow portion (116) formed inside the shell portion. In addition, the heat-resistant layer (51) contains plate-shaped inorganic filler particles (52) as the main component. |