The preparation method of the lithium ion battery cathode comprises the following steps: providing a carbon nanotube array to form a substrate;

该锂 离子电池负极的制备方法，包括以下步骤：提供一碳纳米管阵列形成于一基 底；

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Today, lithium batteries are the preferred power packs for an array of widely used consumer products, from laptops and tablets to cellular phones and portable drills.

WSJ: The Science Behind Dreamliner's Batteries