Reversible proton exchange membrane fuel cell (RPEMFC) is an electrochemical cell working both as the water electrolyzer (charging) and fuel cell (discharging).

可逆质子交换膜燃料电池(RPEMFC)是一种在同一装置上实现水电解(充电)和燃料电池发电(放电)两种功能的储能电池。

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The process modification to treat and recycle the waste water from the washing compartments of electrolyzer in Shandong Hengtong Chemical Industry Inc. is introduced.

以山东恒通化工有限公司的工艺改造为例，介绍电解冲箱废水治理及回收利用的一种新方法。

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Great, but what did it cost to extract hydrogen from that water, and how much does the electrolyzer cost?

FORBES: Cars That Run On Air And Water