Improvement of Lithium Storage Performance of Silica Anode by Using Ketjen Black as Functional Conductive Agent

被引：9

作者：

Hu, Guobin ^{[1
]}

Sun, Xiaohui ^{[1
]}

Liu, Huigen ^{[1
]}

Xu, Yaya ^{[1
]}

Liao, Lei ^{[2
]}

Guo, Donglei ^{[2
]}

Liu, Xianming ^{[3
]}

Qin, Aimiao ^{[1
]}

机构：

[1] Guilin Univ Technol, Coll Mat Sci, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China

[2] Guilin Univ Technol, Coll Environm Sci & Engn, Guangxi Key Lab Environm Pollut Control Theory &, Guilin 541004, Peoples R China

[3] Luoyang Normal Univ, Coll Chem & Chem Engn, Key Lab Funct Oriented Porous Mat, Luoyang 471934, Peoples R China

来源：

NANOMATERIALS | 2022年 / 12卷 / 04期

关键词：

silica-based anode; Ketjen Black; electrochemical properties; lithium-ion battery; HOLLOW SIO2 MICROSPHERES; DOPED CARBON LAYER; LI-ION BATTERIES; ENERGY-STORAGE; NANOCOMPOSITE;

D O I：

10.3390/nano12040692

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, SiO2 aerogels were prepared by a sol-gel method. Using Ketjen Black (KB), Super P (SP) and Acetylene Black (AB) as a conductive agent, respectively, the effects of the structure and morphology of the three conductive agents on the electrochemical performance of SiO2 gel anode were systematically investigated and compared. The results show that KB provides far better cycling and rate performance than SP and AB for SiO2 anode electrodes, with a reversible specific capacity of 351.4 mA h g(-1) at 0.2 A g(-1) after 200 cycles and a stable 311.7 mA h g(-1) at 1.0 A g(-1) after 500 cycles. The enhanced mechanism of the lithium storage performance of SiO2-KB anode was also proposed.

引用

页数：11

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