当电池释放电能或放电时，能量以相反的方向迁移，从阳极移至阴极。
When a battery powers a product, or discharges, energy travels the opposite way, between its anode and cathode.
只是存在两个问题：它的储能比钴氧化物要低，而且导电率也较低，这限制了电池释放和存储能量的速度。
There were just two problems: it had a lower energy-density than cobalt oxide and suffered from low conductivity, limiting the rate at which energy could be delivered and stored by the battery.
锂离子电池排列在汽车底部，释放更多的内部空间。
Lithium-ion batteries line the vehicle floor, further freeing up cabin space.
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