Interesting comparison by volume, by value:...

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    Interesting comparison by volume, by value: http://www.baj.or.jp/e/statistics/01.html

    BASF certainly haven't given up on NiMH as was predicted a few years back: http://ecomento.com/2015/03/10/nimh-batteries-will-have-10-times-more-energy-density-basf/
 
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