各家科技产品公司也都在努力想要解决这一问题。

Apple, for example, is investigating using fuel cells to power its phones and laptops, and this year was granted a patent for a system it claimed could power its devices for weeks.

例如苹果公司就在研究为其手机和笔记本电脑配备燃料电池。公司今年还获得了一项系统专利，该系统据称可以连续几周为苹果设备供电。

In 2012 US energy secretary Steven Chu called for a big push to improve batteries, challenging scientists to produce a battery with five times the capacity within five years.

2012年，美国能源部长朱棣文呼吁大力帮扶电池领域，希望科学家能在五年内研究出五倍电量的电池。

Aside from mobile gadgets, improving battery technology is seen as being key to the success of electric cars, which currently have a limited mileage before they must stop to be recharged.

除了移动设备，提升电池技术也是电动汽车发展的关键。目前的电动汽车均有里程上限，因为要时常停下来充电。

Vocabulary

drain：消耗

electrical pulse：电脉冲

stumbling block：绊脚石；障碍

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