随着锂离子电池(LIBs)的广泛应用,开始出现锂资源的匮乏以及成本飞涨的问题,钠离子电池(SIBs)具有钠资源储量丰富、材料成本低等优点,被认为是锂离子电池的替代品。目前,在研究中的钠电池负极材料主要包括软碳、硬碳、硫化物、过渡金属氧化物等。虽然软碳材料的电化学性能稍逊于硬碳材料,但软碳主要来自沥青、煤等大宗原材料,具有来源广泛、成本低的特点。通过超纯炭制备钠离子负极材料,并制作半电池进行性能测试。结果表明:半电池比容量为216.1mAh/g,首次库仑效率为85.1%。其中,经硝酸处理的超纯炭的比容量要比未处理超纯炭高约14%。因此,无烟煤超纯炭有作为钠离子电池负极材料的可用性。
With the wide application of lithium-ion batteries (LIBs),the problems such as the resource scarcity and soaring costs have emerged.Sodium-ion batteries (SIBs) have the advantages of rich sodium resources and low material cost,and are considered as an alternative to lithium-ion batteries.At present,the sodium battery anode materials under research mainly include soft carbon,hard carbon,sulfide,transition metal oxides,etc.Although the electrochemical properties of soft carbon material slightly less than that of hard carbon materials,soft carbon are mainly from asphalt,coal and other bulk raw materials,with the characteristics of extensive source and low cost.The sodium-ion anode was prepared by ultrapure carbon,and a half cell was fabricated and its performance was tested.The results showed that the specific capacity of the half-cell was 216.1mAh/g and the initial coulombic efficiency was 85.1%.Among them,the specific capacity of ultrapure carbon treated by nitric acid was about 14% higher than that of untreated ultrapure carbon.The data proved the availability of ultrapure carbon from anthracite as sodium-ion battery anode material.
[1] 罗京.新型储能驶入高质量发展快车道[N].中国证券报,2022-03-25.https://www.cs.com.cn/cj2020/202303/t20230325＿6332015.html.
[2] 叶佳佳,胡成.钠离子电池在电网储能领域的应用前景展望[J].山东电力技术,2021,48(2):7-10.
[3] 吴权,刘彦辰,朱卓,等.钠离子电池碳负极材料的研究进展[J].中国科学:化学,2021,51(7):861-873.
[4] Zhang Wenli,Zhang Fan,Ming Fangwang,et al.Sodium-ion battery anodes:status and future trends[J].Energy Chem,2019,1(2):100012.
[5] 段建.高性能钠离子电池负极材料研究[D].武汉:华中科技大学,2015.
[6] Vasireddy S,Morreale B,Cugini A,et al.Clean liquid fuels from direct coal liquefaction:chemistry,catalysis,technological status and challenges[J].Energy & Environmental Science,2011,4(2):311-345.
[7] Haenel M W.Recent progress in coal structure research[J].Fuel,1992,71(11):1211-1223.
[8] Oya A,Otani S.Catalytic graphitization of carbons by various metals[J].Carbon,1979,17(2):131-137.
[9] 高川.以无烟煤为主要原料制备矿热电炉用炭材料的研究[D].长沙:湖南大学,2014.
[10] Li Yunming,Hu Yongsheng,Qi Xingguo,et al.Advanced sodium-ion batteries using superior low cost pyrolyzed coal-based amorphous carbon as economical anode material for sodium-ion battery anode:towards practical applications[J].Energy Storage Materials,2016,5:191-197.
[11] Kong Junli,Pan Guanghong,Su Zhijiang.The coal as high performance and low cost anodes for sodium-ion batteries[J].Materials Letters:X,2022,13:100123.
[12] Xiao Nan,Wei Yibo,Li Hongqiang,et al.Boosting the sodium storage performance of coal-based carbon materials through structure modification by solvent extraction[J].Carbon,2020,162:431-437.
[13] Zhuang Z H,Cui Y L,Zhu H G,et al.Coal-based amorphous carbon as economical anode material for sodium-ion battery[J].Journal of the Electrochemical Society,2018,165(10):2225-2232.
[14] Shi Ming,Song Changlei,Tai Zige,et al.Coal-derived synthetic graphite with high specific capacity and excellent cyclic stability as anode material for lithium-ion batteries[J].Fuel,2021,292(15):120250.
[15] Liu Xinyu,Tao Huachao,Tang Chunyan,et al.Anthracite-derived carbon as superior anode for lithium/potassium-ion batteries[J].Chemical Engineering Science,2022,248(Part B):117200.
[16] Deng Rongyu,Chu Fulu,Yu Huanyu,et al.Electrochemical performance of expanded graphite prepared from anthracite via a microwave method[J].Fuel Processing Technology,2022,227:107100.
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