Tissue-Derived Carbon Microbelt Paper: A High-Initial-Coulombic-Efficiency and Low-Discharge-Platform K+-Storage Anode for 4.5 V Hybrid Capacitors

Author(s):  
Huanwen Wang ◽  
Taoqiu Zhang ◽  
Zhifei Mao ◽  
Xiaojun Shi ◽  
Jun Jin ◽  
...  

Hard carbon (HC) is a promising anode material for K+-storage due to its randomly oriented turbostratic structure. However, most reported HC anodes exhibit low initial Coulombic efficiency (ICE) and no...


Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1294 ◽  
Author(s):  
Yuesheng Wang ◽  
Zimin Feng ◽  
Wen Zhu ◽  
Vincent Gariépy ◽  
Catherine Gagnon ◽  
...  

Sodium-ion batteries (SIBs) are in the spotlight because of their potential use in large-scale energy storage devices due to the abundance and low cost of sodium-based materials. There are many SIB cathode materials under investigation but only a few candidate materials such as carbon, oxides and alloys were proposed as anodes. Among these anode materials, hard carbon shows promising performances with low operating potential and relatively high specific capacity. Unfortunately, its low initial coulombic efficiency and high cost limit its commercial applications. In this study, low-cost maple tree-biomass-derived hard carbon is tested as the anode for sodium-ion batteries. The capacity of hard carbon prepared at 1400 °C (HC-1400) reaches 337 mAh/g at 0.1 C. The initial coulombic efficiency is up to 88.03% in Sodium trifluoromethanesulfonimide (NaTFSI)/Ethylene carbonate (EC): Diethyl carbonate (DEC) electrolyte. The capacity was maintained at 92.3% after 100 cycles at 0.5 C rates. The in situ X-ray diffraction (XRD) analysis showed that no peak shift occurred during charge/discharge, supporting a finding of no sodium ion intercalates in the nano-graphite layer. Its low cost, high capacity and high coulombic efficiency indicate that hard carbon is a promising anode material for sodium-ion batteries.



2008 ◽  
Vol 177 (1) ◽  
pp. 205-210 ◽  
Author(s):  
Bingkun Guo ◽  
Jie Shu ◽  
Kun Tang ◽  
Ying Bai ◽  
Zhaoxiang Wang ◽  
...  






2017 ◽  
Vol 61 (2) ◽  
pp. 285-295 ◽  
Author(s):  
Yongqiang Ding ◽  
Bingjun Yang ◽  
Jiangtao Chen ◽  
Li Zhang ◽  
Junshuai Li ◽  
...  


2016 ◽  
Vol 4 (34) ◽  
pp. 13046-13052 ◽  
Author(s):  
Pin Liu ◽  
Yunming Li ◽  
Yong-Sheng Hu ◽  
Hong Li ◽  
Liquan Chen ◽  
...  

This study reports a hard carbon material derived from a waste biomass of corn cob and the influence of carbonized temperature on electrochemical performance. This study provides a promising anode material with low cost, high initial coulombic efficiency and excellent cycle performance, making sodium-ion batteries closer to practical applications.



2020 ◽  
Vol 5 (5) ◽  
pp. 895-903 ◽  
Author(s):  
Hehe Zhang ◽  
Chong Luo ◽  
Hanna He ◽  
Hong-Hui Wu ◽  
Li Zhang ◽  
...  

An anode of hard carbon spheres with both small size and a porous structure enables superior electrochemical performance of potassium-ion batteries.



2018 ◽  
Vol 6 (45) ◽  
pp. 22840-22850 ◽  
Author(s):  
Meiling Kang ◽  
Yingying Wu ◽  
Xin Huang ◽  
Kaiqiang Zhou ◽  
Zhigao Huang ◽  
...  

A high-performance hybrid sodium-ion capacitor was developed through the engineering of a TiO2 anode to achieve record high initial coulombic efficiency.



2019 ◽  
Vol 3 (9) ◽  
pp. 2361-2365 ◽  
Author(s):  
Xiaoyong Dou ◽  
Ming Chen ◽  
Jiantao Zai ◽  
Zhen De ◽  
Boxu Dong ◽  
...  

Silicon (Si) has been regarded as a promising next-generation anode material to replace carbon-based materials for lithium ion batteries (LIBs).



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