description of the Chinese nickel–iron battery from BeUtilityFree 互联网档案馆的存檔,存档日期2009-02-06. mpoweruk.com: Accumulator and battery comparisons (pdf) (PDF). [2013-01-08]
designed to look for materials that are scarce on Earth but found in everything from a Toyota Prius car battery to guidance systems on cruise missiles. ...