Carbon Derived from Pine Needles as a Na+-Storage Electrode Material in Dual-Ion Batteries

被引：22
|
作者：
Wang, Xiaohong [1 ,2 ]
Zheng, Cheng [3 ]
Qi, Li [1 ]
Wang, Hongyu [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Guangdong Univ Technol, Sch Mat & Energy, 100 Outer Ring West Rd, Guangzhou 510006, Guangdong, Peoples R China
来源：
GLOBAL CHALLENGES | 2017年 / 1卷 / 07期
基金：
中国国家自然科学基金;
关键词：
carbon; dual-ion batteries; graphite; pine needle; HEXAFLUOROPHOSPHATE ANION INTERCALATION; GRAPHITE CATHODE; PERFORMANCE; AC/GRAPHITE; VOLTAGE;
D O I：
10.1002/gch2.201700055
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Pine needles are used as the precursor material to prepare hard carbon. Scanning electron microscopy, X-ray diffraction, and N-2 adsorption-desorption tests are carried out to characterize the surface, crystal, and pore structure of the material. The pine needle derived carbon (PNC) exhibits excellent Na-ion storage ability. A dual-ion battery of PNC/graphite using a Na+-based organic electrolyte is constructed. The batteries display outstanding electrochemical performance: a superior energy density (200 Wh kg(-1) at 131 W kg(-1)), high cut-off voltage (4.7 V), and outstanding cycling stability (87.2% retention after 1000 cycles). In addition, the separate responses of the cathode and anode are investigated.
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页数：7
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