ソディウムイオン電池

下記の記事が出ている。

　Phones could soon be powered by SALT: Sodium-ion batteries are cheaper and last longer than cells currently used in gadgets
　Daily Mail: 1 December, 2015
　http://www.dailymail.co.uk/sciencetech/article-3340982/Phones-soon-powered-SALT-Sodium-ion-batteries-cheaper-longer-cells-currently-used-gadgets.html