| 摘要 |
<p>A cell having an excellent cell capacity, an excellent high-temperature charging/discharging cycle characteristic, and further an improved load characteristic. A positive electrode (21) and a negative electrode (22) are wound, with a separator (23) interposed between the electrodes. The positive electrode (21) has a positive electrode mixture layer containing a lithium-containing complex oxide comprising at least one element selected from the group consisting of Co, Ni, Mn, and Fe. The negative electrode (22) has a positive electrode mixture layer containing an Sn-containing alloy, a carbonaceous material, and a fatty acid or its metal salt. Thus, excellent cell capacity and high-temperature charging/discharging cycle are achieved. If the content of the fatty acid and its metal salt in the negative electrode mixture layer is made to lie between 0.1 to 6 mass%, the load characteristic can be also improved.</p> |
