High-performance K-ion half/full batteries with superb rate capability and cycle stability.
Proc Natl Acad Sci U S A
; 119(23): e2122252119, 2022 Jun 07.
Article
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| MEDLINE
| ID: mdl-35658081
ABSTRACT
SignificanceThe present work might be significant for exploring advanced K-ion batteries with superb rate capability and cycle stability toward practical applications. The as-assembled K-ion half cell exhibits an excellent rate capability of 428 mA h g-1 at 100 mA g-1 and a high reversible specific capacity of 330 mA h g-1 with 120% specific capacity retention after 2,000 cycles at 2,000 mA g-1, which is the best among those based on carbon materials. The as-constructed full cell delivers 98% specific capacity retention over 750 cycles at 500 mA g-1, superior to most of those based on carbon materials that have been reported thus far.
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MEDLINE
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Proc Natl Acad Sci U S A
Año:
2022
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Article