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Submitted on: 31 May 2018.
Revised on: 22 June 2018.
Accepted on: 28 July 2018.
___________________JOURNAL OF POWER SOURCES---ELSEVIER
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Submitted on: 23 August 2018.
Revised on: 03 October 2018.
Accepted on: 19 November 2018.
___________________JOURNAL OF POWER SOURCES---ELSEVIER
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