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Surface Coating Modification of Lithium-Rich Manganese-Based Oxide as Cathode Material for Lithium-Ion Batteries
Online since: January 2023
Authors: Shu Jun Qiu, Hai Liang Chu, Fen Xu, Sheng Zhou Bu, Yu Xing Long, Liang Bin Zhang, Mei Yan Lu, Yue Mei Li, Dan Wei, Yong Peng Xia, Yu Mei Luo, Li Xian Sun
Liu, Characteristics and electrochemical performance of cathode material Co-coated LiNiO2 for Li-ion batteries, Trans.
Li, Which of the nickel-rich NCM and NCA is structurally superior as a cathode material for lithium-ion batteries?
Sun, Surface modification with oxygen vacancy in Li-rich layered oxide Li1.2Mn0.54Ni0.13Co0.13O2 for lithium-ion batteries, J.
Shan, Improved electrochemical performances of yttrium oxyfluoride-coated Li[Li0.2Mn0.54Ni0.13Co0.13]O2 for lithium ion batteries, J.
Guo, Recent development of Li-rich manganese cathode material for Li-ion batteries, J.
Characteristics of (Fe, M)S2 (M=Co, Ni, Mo) Composite Powders Fabricated by MCP
Online since: January 2007
Authors: Woo Hyun Jung, Kwang Chul Jung, Se Hoon Suck, In Sup Ahn, Dong Kyu Park, Ki Won Kim
Introduction Batteries are important power sources of portable electronic devices and electric vehicle.
Especially, electric vehicle and hybrid electric vehicle need batteries with lightweight and high power [1,2].
Ni/MH battery and Li based battery have been widely used because of high power and high energy density, but drawback is that it is more expensive than lead acid battery [4, 5].
Fig. 5 shows a discharge curve of Li/(Fe, M)S2 cells with various transition metal.
Scrosati: In Modern Batteries, Arnold, (1977) 255
Influence of Electroless Copper Deposition on the Electrochemical Performance of Si/MCMB
Online since: August 2011
Authors: Wei Qiang Gao, Rui Sheng Xue, Jing Hua Yu, Mei Yan
IntroductionPresently graphite or other carbonaceous materials are the most common active materials for negative electrodes in lithium-ion batteries.
However, the reversible capacity of graphite anodes in Li-ion batteries is only 372mAh/g, which cannot satisfy the requirement of further enhance the portability.
Each Si atom can accommodate 4.2 Li atoms giving rise to a theoretical capacity around 4200 mAh/g.
The element Cu in Si-Cu/MCMB-1 exists primarily as Cu3Si [2], but most of element Cu in Si-Cu/MCMB-2 exists as Cu metal.
ConclusionAdding conductive metal, Cu, in Si/MCMB by electroless deposition is an effective method to improve the anodic performance of Si/MCMB.
Synthesis and Electrochemical Properties of Rechargeable Battery Electrolyte Lithium Bis(heptafluoroisopropyl)tetrafluorophosphate
Online since: June 2013
Authors: Shuang Feng, Ai Hong Guo, Yun Ting Mi, Hong Zhi Li
At present, Lithium Hexafluorophosphate is used as conducting electrolyte lithium salt in lithium-ion secondary batteries.
At present, Lithium Hexafluorophosphate is used as conducting electrolyte lithium salt in lithium-ion secondary batteries.
Results and discussions3.1 The oxidation decomposition potential of Li[(C3F7)2PF4] electrolyteDiameter of 8 mm platinum working electrode, lithium metal for electrode and reference electrode compose of three-electrode system.
This is mainly due to introduce the organic group into the LiPF6, the electrolyte generate a large number of large anions, movement of electrolyte ion slows down, results in increased resistance.3.3 The initial charge / discharge curveFig.3 The initial charge / discharge curveTake LiCoO2 as cathode material, high purity lithium metal sheet as anode material, self-made Li [(C3F7)2PF4] dissolved in EC and DMC mixed solvent (EC: DMC=1:1) as electrolyte, assemble simulation battery, keeping still for 12-24 hours, electrochemical testing is carried out in LandCT2001A battery performance testing instrument.
Decomposition potential of Li[(C3F7)2PF4] and LiPF6 is almost the same; electrolyte electric resistance is 140ohm during discharge; battery discharge platform is about 3.8 V.
Preparation of Photoluminescent Silicon Nanowires Based on Multicrystalline Silicon Wafers
Online since: June 2010
Authors: Jia You Feng, Xian Zhong Sun
This work may contribute to the development of SiNWs in application including optoelectronic devices, solar energy conversion devices, chemical sensors, and lithium secondary batteries, etc.
With respect to the impressive development of SiNWs, this work may find its application in anode materials for lithium secondary batteries, photocatalytic substrates, solar energy conversion, and nanoscale optoelectronic devices.
Li, H.
Li, Z.J.
Li, D.L.
Effects of Mg2+ Doping on Performance of Anode Material Li4Ti5O12
Online since: September 2013
Authors: Neng Wei Wang, Zai Chun Huang, Xu Mei Cui, Zhao Yu Wu
It fully proved that Mg2+ doping was relatively effective.1 Introduction The Li-ion battery is a new type of ones which is developed on the basis of the lithium battery.
Compared with the lithium battery, the biggest advantage of the Li-ion battery is that the material of the insertion-extraction of Li+ takes the place of lithium metal which overcomes the shortcomings of the passivation of the lithium anode and dendrite penetration, while the safety of the battery is greatly improved.
Research progress in Li4Ti5Ol2 as anode material for Li-ion battery.
[9] SHI Si-qi, WANG Zhao-xiang.
Physical problems and developments of lithium ion batteries.
Characterization of LTO/Silicon Oxycarbide with Activated Carbon Addition for Anode of Lithium-Ion Batteries
Online since: July 2020
Authors: Bambang Priyono, Mochamad Febby Fitratama, Shania Roulli, Achmad Subhan, Anne Zulfia
In the anode material of lithium-ion batteries, the better pattern is the smaller semi-circle.
Nordh, “Li4Ti5O12 as an anode material for Li ion batteries in situ XRD and XPS studies,” Uppsala Universitet Thesis, pp. 1–40, 2013
Li, L.
Liu, “Structure and electrochemical properties of Li4Ti5O12 with Li excess as an anode electrode material for Li-ion batteries,” Electrochimica Acta, vol. 123, pp. 576–581, Mar. 2014
Li, and Qilu, “A new hydrothermal synthesis of spherical Li4Ti5O12 anode material for lithium-ion secondary batteries,” Journal of Power Sources, vol. 219, pp. 45–51, 2012
Charge/Discharge Characteristics of SnO2 Electrodes for Lithium Polymer Batteries
Online since: June 2005
Authors: Jae Won Choi, Yeon Hwa Kim, Guk-Tae Kim, Jou Hyeon Ahn, Hal Bon Gu, Jong Uk Kim, Dae Kyoo Jun, Jin Kyu Kim
Introduction Lithium ion secondary batteries using graphite and hard carbon materials have become important for use in portable electronic devices [1-3].
However, irreversible capacity loss due to a reduction/replacement reaction is large, and it prevents the use of tin oxide anode materials for lithium ion secondary batteries.
Pure lithium metal was used as the counter and reference electrodes.
These results suggest that SnO2 can be used for high capacity materials such as anode materials for lithium polymer batteries.
Power Sources Vol. 112 (2002), p. 596 [9] S.I.
Synthesis and Application of Carbon-Based Nanocomposites
Online since: August 2013
Authors: Xu Han, Shi Jun Yu, Da Wei Yu, Yan Ming Chen, Xiao Li Wang
Electrochemically active metal oxides have emerged as the most promising candidates for the anode materials in the next generation lithium ion batteries duo to their high theoretical capacities and natural abundance.
Recently, Li-ion batteries have predominantly provided the electrical power necessary to operate small portable electronic devices such as cellular phones, laptop computers, and camcorders[1-3].
A Li-ion battery is mainly composed of a carbonaceous anode (generally graphite), a carbonate-based organic electrolyte with a Li-containing salt (LiPF6), and a Li metal oxide cathode (LiCoO2)[1-3].
With progress of knowledge of electrode materials, it has been found that their surface structures are of great importance to the electrochemical performance of Li-ion batteries.
Although further studies are required to understand and overcome the irreversible capacity in the initial cycles, Si@SiOx/C nanocomposites can be considered promising candidates as anode materials in lithium-ion batteries.
Comprehensive Analysis of Heat-Treated Lithium Metal: Surface Characteristics and Evolution of the Solid Electrolyte Interphase
Online since: December 2024
Authors: Soon Ki Jeong
Tarascon, Li-O2 and Li-S batteries with high energy storage, Nat.
Yushin, Li-ion battery materials: present and future, Mater.
Zhang, Lithium metal anodes for rechargeable batteries, Energy Environ.
Cui, Reviving the lithium metal anode for high-energy batteries, Nat.
Li, L.
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