scholarly journals Effect of stress on electrochemical performance of hollow carbon-coated silicon snode in lithium ion batteries

2019 ◽  
Vol 68 (12) ◽  
pp. 120201
Author(s):  
Feng-Nan Sun ◽  
Lu Feng ◽  
Jia-He Bu ◽  
Jing Zhang ◽  
Lin-An Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Carbon Coated ◽  
Hollow Carbon

scholarly journals The Synthesis and Electrochemical Performance of Si Composite with Hollow Carbon Microtubes by the Carbonization of Milkweed from Nature as Anode Template for Lithium Ion Batteries

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5124
Author(s):  
Eun Hyuk Chung ◽  
Jong Pil Kim ◽  
Hyun Gyu Kim ◽  
Jae-Min Chung ◽  
Sei-Jin Lee ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electrical Conductivity ◽  
Electrochemical Performance ◽  
Pore Size ◽  
Lithium Ion Batteries ◽  
Polyvinylidene Fluoride ◽  
Lithium Ion ◽  
Size Analysis ◽  
Pore Size Analysis ◽  
Hollow Carbon

It has been reported that improving electrical conductivity and maintaining stable structure during discharge/charge process are challenge for Si to be used as an anode for lithium ion batteries (LIB). To address this problem, milkweed (MW) was carbonized to prepare hollow carbon microtubes (HCMT) derived from biomass as an anode template for LIB. In order to improve electrical conductivity, various materials such as chitosan (CTS), agarose, and polyvinylidene fluoride (PVDF) are used as carbon source (C1, C2, and C3) by carbonization. Carbon coated HCMT@Si composits, HCMT@Si@C1, HCMT@Si@C1@C2, and HCMT@Si@C1@C3, have been successfully synthesized. Changes in structure and crystallinity of HCMT@Si composites were characterized by using X-ray diffraction (XRD). Specific surface area for samples was calculated by using BET (Brunauer–Emmett–Teller). Also, pore size and particle size were obtained by particle and pore size analysis system. The surface morphology was evaluated using high resolution scanning electron microscopy (HR-SEM), Field Emission transmission electron microscopy (TEM). The thermal properties of HCMT@Si composites were analyzed by thermogravimetric analysis (TGA). Our research was performed to study the synthesis and electrochemical performance of Si composite with HCMT by the carbonization of natural micro hollow milkweed to form an inner space. After carbonization at 900 °C for 2 h in N2 flow, inner diameter of HCMT obtained was about 10 μm. The electrochemical tests indicate that HCMT@Si@C1@C3 exhibits discharge capacity of 932.18 mAh/g at 0.5 A/g after 100 cycles.

scholarly journals 3D carbon-coated stannous sulfide-molybdenum disulfide anodes for advanced lithium-ion batteries

2020 ◽  
Vol 1 (7) ◽  
pp. 2323-2331
Author(s):  
Yuanyi Luo ◽  
Chunxia Chen ◽  
Weicheng Sun ◽  
Ludi Shi ◽  
Yemao Lin ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Molybdenum Disulfide ◽  
Metal Sulfide ◽  
Lithium Ion ◽  
Carbon Coated

A strategy has been developed to fabricate 3D SnS–MoS2@C, which significantly improves the electrochemical performance of metal sulfide anodes.

scholarly journals High electrochemical performance of nanocrystallized carbon-coated LiFePO4 modified by tris(pentafluorophenyl) borane as a cathode material for lithium-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (51) ◽  
pp. 28978-28986 ◽  
Author(s):  
Yifang Wu ◽  
Shaokun Chong ◽  
Yongning Liu ◽  
ShengWu Guo ◽  
Pengwei Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
High Rate Capability ◽  
Carbon Coated ◽  
Boron Source

C18BF15 was first adopted as a boron source and has demonstrated its clear modification effects, as shown by the high rate capability.

Dodecylamine-derived thin carbon-coated single Fe3O4 nanocrystals for advanced lithium ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 37923-37928 ◽  
Author(s):  
Min-Young Cho ◽  
Seung-Beom Yoon ◽  
Kwang-Bum Kim ◽  
Dae Soo Jung ◽  
Kwang Chul Roh
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Volume Change ◽  
Large Volume ◽  
Lithium Ion ◽  
Solvothermal Process ◽  
Excellent Electrochemical Performance ◽  
Thin Carbon ◽  
Carbon Coated ◽  
Large Volume Change

Thin carbon-coated single Fe3O4 nanocomposite were synthesized by a solvothermal process using dodecylamine. The composite structure can accommodate the large volume change of Fe3O4 and thus enabled excellent electrochemical performance.

MOF-derived, N-doped porous carbon coated graphene sheets as high-performance anodes for lithium-ion batteries

2016 ◽  
Vol 40 (11) ◽  
pp. 9679-9683 ◽  
Author(s):  
Xin Liu ◽  
Shichao Zhang ◽  
Yalan Xing ◽  
Shengbin Wang ◽  
Puheng Yang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Graphene Sheet ◽  
Porous Carbon ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Graphene Sheets ◽  
Carbon Coated

N-doped porous carbon coated graphene sheet anode materials exhibit fascinating electrochemical performance with a capacity of 1040 mA h g−1.

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