scholarly journals RETRACTED ARTICLE: Theoretical Limits of Energy Density in Silicon-Carbon Composite Anode Based Lithium Ion Batteries

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ranjan Dash ◽  
Sreekanth Pannala
Keyword(s):  
Energy Density ◽  
Volume Expansion ◽  
Lithium Ion ◽  
Threshold Value ◽  
Carbon Composite ◽  
Power Characteristics ◽  
Silicon Carbon ◽  
Retracted Article ◽  
Si Anode ◽  
Potential Improvement

Abstract Silicon (Si) is under consideration as a potential next-generation anode material for the lithium ion battery (LIB). Experimental reports of up to 40% increase in energy density of Si anode based LIBs (Si-LIBs) have been reported in literature. However, this increase in energy density is achieved when the Si-LIB is allowed to swell (volumetrically expand) more than graphite based LIB (graphite-LIB) and beyond practical limits. The volume expansion of LIB electrodes should be negligible for applications such as automotive or mobile devices. We determine the theoretical bounds of Si composition in a Si–carbon composite (SCC) based anode to maximize the volumetric energy density of a LIB by constraining the external dimensions of the anode during charging. The porosity of the SCC anode is adjusted to accommodate the volume expansion during lithiation. The calculated threshold value of Si was then used to determine the possible volumetric energy densities of LIBs with SCC anode (SCC-LIBs) and the potential improvement over graphite-LIBs. The level of improvement in volumetric and gravimetric energy density of SCC-LIBs with constrained volume is predicted to be less than 10% to ensure the battery has similar power characteristics of graphite-LIBs.

Scalable and controllable fabrication of CNTs improved yolk-shelled Si anode with advanced in-operando mechanical quantification

2021 ◽  
Author(s):  
Lei Zhang ◽  
Qianwei Huang ◽  
Xiaozhou Liao ◽  
Yuhai Dou ◽  
Porun Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Carbon Materials ◽  
Lithium Ion ◽  
Silicon Carbon ◽  
Si Anode ◽  
In Operando ◽  
Controllable Fabrication

The yolk-shelled silicon/carbon materials (YS-Si/C) are the most promising anode candidates to further improve the energy density of the commercial lithium-ion batteries. Yet, the limited conductive promotion and low tap...

Investigation of Porous Silicon/Carbon Composite as Anodes for Lithium Ion Batteries

2015 ◽  
Vol 30 (4) ◽  
pp. 351 ◽  
Author(s):  
HUANG Yan-Hua ◽  
HAN Xiang ◽  
CHEN Hui-Xin ◽  
CHEN Song-Yan ◽  
YANG Yong
Keyword(s):  
Porous Silicon ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Silicon Carbon

Graphite@Silicon embedded in Carbon Conformally Coated Tiny SiO2 Nanoparticles Matrix for High-Performance Lithium-Ion Batteries

2021 ◽  
Author(s):  
Huitian Liu ◽  
Xu Liu ◽  
Zhaolin Liu ◽  
Junyan Tao ◽  
Xiaoqian Dai ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Large Volume ◽  
Volume Expansion ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Sio2 Nanoparticles ◽  
Carbon Composites ◽  
Effective Strategy ◽  
Si Anode

Engineering of graphite@Si/carbon composites is considered as an effective strategy to surmount the shortcomings of low conductivity and large volume expansion of bare Si anode materials for lithium-ion batteries. Nevertheless,...

High performance silicon carbon composite anode materials for lithium ion batteries

2009 ◽  
Vol 189 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Zhaojun Luo ◽  
Dongdong Fan ◽  
Xianlong Liu ◽  
Huanyu Mao ◽  
Caifang Yao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Silicon Carbon

Converting micro-sized kerf-loss silicon waste to high-performance hollow-structured silicon/carbon composite anodes for lithium-ion batteries

2020 ◽  
Vol 4 (9) ◽  
pp. 4780-4788 ◽  
Author(s):  
Qiang Ma ◽  
Jiakang Qu ◽  
Xiang Chen ◽  
Zhuqing Zhao ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Low Cost ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Lithium Storage ◽  
Practical Applications ◽  
Storage Performance ◽  
Silicon Carbon ◽  
Composite Anodes

Low-cost feedstocks and rationally designed structures are the keys to determining the lithium-storage performance and practical applications of Si-based anodes for lithium-ion batteries (LIBs).

Modified Chestnut-Like Structure Silicon Carbon Composite as Anode Material for Lithium-Ion Batteries

2019 ◽  
Vol 7 (12) ◽  
pp. 10415-10424 ◽  
Author(s):  
Jing Luo ◽  
Bingjie Ma ◽  
Jiao Peng ◽  
Zhenyu Wu ◽  
Zhigao Luo ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Silicon Carbon

scholarly journals Cathode porosity is a missing key parameter to optimize lithium-sulfur battery energy density

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ning Kang ◽  
Yuxiao Lin ◽  
Li Yang ◽  
Dongping Lu ◽  
Jie Xiao ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Reversible Capacity ◽  
High Energy ◽  
Carbon Composite ◽  
Composite Cathodes ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Key Parameter

Abstract While high sulfur loading has been pursued as a key parameter to build realistic high-energy lithium-sulfur batteries, less attention has been paid to the cathode porosity, which is much higher in sulfur/carbon composite cathodes than in traditional lithium-ion battery electrodes. For high-energy lithium-sulfur batteries, a dense electrode with low porosity is desired to minimize electrolyte intake, parasitic weight, and cost. Here we report the profound impact on the discharge polarization, reversible capacity, and cell cycling life of lithium-sulfur batteries by decreasing cathode porosities from 70 to 40%. According to the developed mechanism-based analytical model, we demonstrate that sulfur utilization is limited by the solubility of lithium-polysulfides and further conversion from lithium-polysulfides to Li2S is limited by the electronically accessible surface area of the carbon matrix. Finally, we predict an optimized cathode porosity to maximize the cell level volumetric energy density without sacrificing the sulfur utilization.

Research progress on silicon/carbon composite anode materials for lithium-ion battery

2018 ◽  
Vol 27 (4) ◽  
pp. 1067-1090 ◽  
Author(s):  
Xiaohui Shen ◽  
Zhanyuan Tian ◽  
Ruijuan Fan ◽  
Le Shao ◽  
Dapeng Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Research Progress ◽  
Composite Anode ◽  
Silicon Carbon
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