| abstract |
[Problem] There is a problem that an electrolyte solution reacts with a positive electrode active material or a negative electrode active material due to heat at the time of reflow soldering, causing rapid swelling or bursting. By using a positive electrode active material or a negative electrode active material composed of particles coated with an oil-repellent substance, a non-aqueous electrolyte secondary battery having a high capacity and capable of reflow soldering can be manufactured. [Selection diagram] Fig. 1 |