The Strucuture Transformation of Silicon Anode Material Induced by Lithium Ion Insertion

2010 ◽  
Vol 146-147 ◽  
pp. 834-837 ◽  
Author(s):  
Zhong Sheng Wen ◽  
Mei Kang Cheng ◽  
Jun Cai Sun

Silicon is the most attractive for the largest theoretical insertion capacity of all known host materials except lithium metal. In this paper, the course of lithium insertion into Si material, especially of the first cycle, has been discussed. Anode phase structure, impedance and character, morphology is presented and discussed in this paper. Changes on different crystal lattices revealed the possibility that the structure collapsed firstly began on lattice (220). Distinct crack on the surface of silicon particles has been observed when the anode was discharged to 0.02V.

2010 ◽  
Vol 129-131 ◽  
pp. 621-625
Author(s):  
Zhong Sheng Wen ◽  
Mei Kang Cheng ◽  
Jun Cai Sun

Silicon is the most attractive anode candidate for lithium ion batteries for its high theoretical capacity. However, it is difficult to be applied as anode material of lithium ion batteries for its poor cyclability and high irreversible capacity caused by structure collapse during the course of lithium insertion-extraction. Considering finding an efficient way to alleviate the crystal transformation during lithium insertion, the silicon anode with the highest theoretical capacity of all know non-lithium substances, was discharged by controlling its insertion capacity. The phase transformation during lithium ion insertion into silicon was investigated in detail. The lithium-insertion phases produced by constant capacity processing consist of Li-Si binary crystals and amorphous host phase. A stable Li12Si7 phase was found under different discharge conditions. This Li-Si binary phase formed by constant capacity showed high structure-reversibility during lithium insertion-extraction. The enhanced cyclability of silicon anode during constant-capacity discharging benefits from the mixture phases of silicon amorphous and crystal Li-Si alloy.


ChemSusChem ◽  
2017 ◽  
Vol 11 (1) ◽  
pp. 299-310 ◽  
Author(s):  
Qiang Guo ◽  
Li Chen ◽  
Zizhao Shan ◽  
Wee Siang Vincent Lee ◽  
Wen Xiao ◽  
...  

2006 ◽  
Vol 972 ◽  
Author(s):  
Haiming Xie ◽  
Haiying Yu ◽  
Abraham F. Jalbout ◽  
Guiling Yang ◽  
Xiumei Pan ◽  
...  

AbstractWe design a way that the anode hosts provide lithium ion in lithium ion battery operation. If the limiting factors of the cathode materials are less, there will be more alternatives for it. It was proven to be successful by two kinds of test cells based on LixCn as anode material, and β-FeOOH or Cr8O21 as cathode materials. Their theoretical capacities are much higher than those present electrode materials. Unlike the lithium secondary batteries with lithium metal foil or lithium alloy as anode, this type of lithium ion batteries with LixCn as anode prohibit dendrite formation during charging-discharge process. The idea of lithium ion sources coming from the anode can come true successfully as a result that steady protecting solution be sought for LixCn.


2012 ◽  
Vol 213 ◽  
pp. 229-232 ◽  
Author(s):  
Lanyao Shen ◽  
Xianwei Guo ◽  
Xiangpeng Fang ◽  
Zhaoxiang Wang ◽  
Liquan Chen

2018 ◽  
Vol 6 (2) ◽  
pp. 443-455 ◽  
Author(s):  
Alois Kuhn ◽  
Juan Carlos Pérez-Flores ◽  
Markus Hoelzel ◽  
Carsten Baehtz ◽  
Isabel Sobrados ◽  
...  

Sodium hexatitanate Na2Ti6O13 with a tunnel structure has been proposed to be an attractive anode material for lithium ion batteries because of its low insertion voltage, structural stability and good reversibility.


Author(s):  
Thushan Pathirana ◽  
Robert Kerr ◽  
Maria Forsyth ◽  
Patrick C. Howlett

Anode-free lithium metal batteries based on ionic liquid electrolytes offer an excellent pathway to significantly boost the energy density and specific energy over current lithium-ion technology by eliminating the anode material during cell assembly.


2017 ◽  
Vol 53 (87) ◽  
pp. 11897-11900 ◽  
Author(s):  
Myungbeom Sohn ◽  
Hyeong-Il Park ◽  
Hansu Kim

The foamed Si particles prepared by a milling-assisted alkaline etching process showed excellent electrochemical performance as an anode for lithium-ion batteries.


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