锂空气电池从空气中吸收氧气充电，因此这种电池可以更小、更轻。
A lithium-air battery pulls oxygen from the air for its charge, so the device can be smaller and more lightweight.
锂钴氧化物的成本占到锂离子电池的30%，而空气却是免费的。
Lithium cobalt oxide accounts for 30% of the cost of a lithium-ion battery. Air, however, is free.
该技术应导致更便宜的电池，因为这个过程空气是免费的，而且碳“成本”是低于锂钴氧化物中使用的锂离子电池。
The technology should result in cheaper batteries since this process is free and the carbon component is less expensive than the lithium cobalt oxide used in lithium-ion batteries.
该技术应导致更便宜的电池，因为这个过程空气是免费的，而且碳“成本”是低于锂钴氧化物中使用的锂离子电池。
The technology should result in cheaper batteries since this process is free and the carbon component is less expensive than the lithium cobalt oxide used in lithium-ion batteries.
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