Potassium-ion batteries with novel N, O enriched corn silk-derived carbon as anode exhibiting excellent rate performance

Zhang, Yingli; Zhao, Rui; Li, Yingqi; Zhu, Xingxing; Zhang, Bo; Lang, Xing‐You; Zhao, Lijun; Jin, Bo; Zhu, Yongfu; Jiang, Qing

doi:10.1016/j.jpowsour.2020.228644

Cited by 49 publications

(27 citation statements)

References 45 publications

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“…Biomass‐derived HCs are considered as the promising anode materials for their low cost and environmental‐friendliness. Cotton, [ 11 ] corn silk, [ 12 ] and Ganoderma lucidum spores [ 13 ] have been used successfully as excellent carbon sources. Particularly, the planting area of corn is the largest among all of the crops in China.…”

Section: Introductionmentioning

confidence: 99%

Highly Graphitic N‐Doped Biomass‐Derived Hard Carbon with a Low Operating Potential for Potassium‐Ion Batteries

Deng

Zhang

et al. 2021

Energy Tech

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Hard carbon is considered to be the most promising anode material for potassium‐ion batteries (PIBs) because of its high storage capability and inexpensive cost, but most of them have a high operating potential. Herein, a highly graphitic nitrogen‐doped hard carbon (NHC) is prepared by soaking a corn stalk in urea solution and calcination. NHC can deliver a reversible capacity of 402 mAh g−1 in the first charge–discharge cycle and 87% of the total capacity is measured below 1 V versus K+/K. Simultaneously, it can retain a capacity of 263 mAh g−1 after 100 cycles at 200 mA g−1. Even at 1 A g−1, it can still provide a capacity of 176 mAh g−1 after 260 cycles. These superior electrochemical performances are attributed to the doping of graphitic nitrogen. Noticeably, such a biomass‐derived NHC is not only environment friendly but also easy to prepare, which makes it a competitive anode material candidate for PIBs.

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Section: Introductionmentioning

confidence: 99%

Highly Graphitic N‐Doped Biomass‐Derived Hard Carbon with a Low Operating Potential for Potassium‐Ion Batteries

Deng

Zhang

et al. 2021

Energy Tech

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“…Therefore, higher oxygen concentrations are expected in boron-doped materials. The oxygen-containing groups also provide active sites for the storage of K ions ( Wang et al, 2018a ; Zhang et al, 2021 ; Lian et al, 2022 ).…”

Section: Resultsmentioning

confidence: 99%

Boron-Doped Pine-Cone Carbon With 3D Interconnected Porosity for Use as an Anode for Potassium-Ion Batteries With Long Life Cycle

Li²,

et al. 2022

Front. Chem.

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Potassium-ion batteries (KIBs) have received widespread attention as an alternative to lithium-ion batteries because of their low cost and abundance of potassium. However, the poor kinetic performance and severe volume changes during charging/discharging due to the large radius of potassium leading to low capacity and rapid decay. Therefore, development of anode materials with sufficient space and active sites for potassium ion deintercalation and desorption is necessary to ensure structural stability and good electrochemical activity. This study prepared boron-doped pine-cone carbon (BZPC) with 3D interconnected hierarchical porous in ZnCl2 molten-salt by calcination under high temperature. The hierarchical porous structure promoted the penetration of the electrolyte, improved charge-carrier diffusion, alleviated volume changes during cycling, and increased the number of micropores available for adsorbing potassium ions. In addition, due to B doping, the BZPC material possessed abundant defects and active centers, and a wide interlayer distance, which enhanced the adsorption of K ions and promoted their intercalation and diffusion. When used as the anode of a KIB, BZPC provided a high reversible capacity (223.8 mAh g−1 at 50 mA g−1), excellent rate performance, and cycling stability (115.9 mAh g−1 after 2000 cycles at 1 A g−1).

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“…In contrast, for NIBs, 200 mAhg -1 of reversible capacity was obtained at 0.12 C and 105 mAhg -1 at 36 C, which is comparatively lower than for PIBs. Yingli Zhang et al 128 reported corn silk-derived carbon with protrusions and nanospheres morphology at its surface. N, O enriched MSHC anode carbon delivers the initial capacity of 309.8 mAhg -1 and retains 82.1 % of its initial capacity after 200 cycles at 0.1 Ag -1 .…”

Section: Materials Advances Accepted Manuscriptmentioning

confidence: 99%

Insights into the diverse precursor-based micro-spherical hard carbons as anode materials for sodium–ion and potassium–ion batteries

2022

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Potassium-ion batteries with novel N, O enriched corn silk-derived carbon as anode exhibiting excellent rate performance

Cited by 49 publications

References 45 publications

Highly Graphitic N‐Doped Biomass‐Derived Hard Carbon with a Low Operating Potential for Potassium‐Ion Batteries

Highly Graphitic N‐Doped Biomass‐Derived Hard Carbon with a Low Operating Potential for Potassium‐Ion Batteries

Boron-Doped Pine-Cone Carbon With 3D Interconnected Porosity for Use as an Anode for Potassium-Ion Batteries With Long Life Cycle

Insights into the diverse precursor-based micro-spherical hard carbons as anode materials for sodium–ion and potassium–ion batteries

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