研究人员建议当白天太阳能电池中产生的电流不做它用的时候来把水分解成氢气和氧气。
The researchers suggest splitting water into hydrogen and oxygen during the day whenever electricity from solar cells is not needed for anything else.
“关键就在于使用空气中的氧气作为试剂，而不是在电池内部添装必需的化学成分。”布鲁斯说。
"The key is to use oxygen in the air as a re-agent, rather than carry the necessary chemicals around inside the battery," says Bruce.
把氢气和氧气分开存放，这样在需要能源时就可用它们来驱动燃料电池。
The hydrogen and oxygen, separated and on-hand, can be used to power a fuel cell whenever energy is needed.
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