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