Accordingly, it is an object of the present invention to solve various problems associated with a decrease in capacity caused by manganese dissolution at high temperatures, which is {HEAD ~ a problem} occurring in {TAIL ~ the prior art} 
occurring in
Accordingly , it is an object of the present invention to solve various problems associated with a decrease in capacity caused by manganese dissolution at high temperatures , which is { HEAD ~ a problem } occurring in { TAIL ~ the prior art }
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