A battery's electrolyte is the material through which ions (in this case lithium ions) pass from one electrode (the cathode) to another (the anode) inside a battery cell.

电池的电解质能让离子(此处为锂离子)自电池内部从一个电极(负极)传递到另一个(正极)。

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The electrode made so far acts as a cathode. Cui says his team is tuning the chemistry of the material to make an anode and is working on making prototype batteries.

这种电极扮演着两种角色：阳极和阴极，Cui说他的团队正在用原材料的元素制作一个阳极同时也在致力于开发电池的原型。

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To address the problem, Cui and his colleagues applied a nanolayer of copper onto one side of a polymer separator, creating a novel third electrode halfway between the anode and the cathode.

为了解决这个问题，崔和他的同事将铜纳米层应用于聚合物隔板的一侧，在阳极与阴极之间形成新颖的第三电极。

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It consists of a negative electrode (cathode) and a positive electrode (anode), with a vacuum between them.

ECONOMIST: Medical technology

A123 has developed a battery that uses a doped lithium nanophosphate electrode (cathode) that eliminates combustible oxygen from the system.

FORBES: Jump Start