| 摘要 |
<p>A non-aqueous electrolyte secondary cell is characterized in that the negative plate is made chiefly of composite particles of which at least part of the core particles containing at least one kind among tin, silicon, and zinc as a constituent element are coated with a solid solution or an intermetallic compound consisting of the constituent element constituting the core particles and at least one element selected from the group consisting of Group 2 elements of the periodic table except the constituent element, transition elements, Group 12 elements, Group 13 elements, and Group 14 elements except carbon and in that the non-aqueous electrolyte is prepared by dissolving an organic acid anion lithium salt into a highly non-oxidizable organic solvent. Therefore, gas is hardly produced even while the secondary cell is stored at high temperatures, and the secondary cell has a high energy density, excellent cycle life characteristics, and excellent high-rate charging/discharging characteristics.</p> |
