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Lithium-Ion Battery

机译:锂离子电池

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Lithium-ion batteries, because they're lightweight and compact, have enabled smart phones to get slimmer and electric vehicles more practical. Like all batteries, they work by means of chemical reactions that send electrons and ions from one electrode to another. Lithium-ion batteries, like the e-book battery shown here, require safety measures such as a fuse to prevent them from catching fire. Battery configurations vary, but generally the electrodes must be thin enough to allow lithium ions to move readily in and out of them. Electrode materials are deposited on foil that collects electrons and conveys them out of the battery. The electrodes don't store much energy by area, so long strips of them are folded or rolled up to boost the battery's capacity.
机译:锂离子电池轻巧紧凑,使智能手机更轻薄,电动汽车更加实用。像所有电池一样,它们通过化学反应进行工作,该化学反应将电子和离子从一个电极发送到另一个电极。锂离子电池(如此处所示的电子书电池)需要采取保险丝等安全措施,以防止起火。电池的配置各不相同,但通常电极必须足够薄,以使锂离子易于进出。电极材料沉积在箔片上,该箔片收集电子并将其传输到电池外。电极按面积存储的能量并不多,因此将长条状电极折叠或卷起以提高电池容量。

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  • 来源
    《Technology Review》 |2012年第4期|p.79|共1页
  • 作者

    KEVIN BULLIS;

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