The improvement of the high voltage performance of LiCoO2 by coating LiTaO3via magnetron sputtering
文献信息
Chenhui Wang, Shaopeng Li, Weiyi Chen, Yining Zhao, Shu Xu, Hui Dou, Xiaogang Zhang
Lithium cobalt oxide (LiCoO2) is one of the most commercially successful cathode materials and has attracted much attention from researchers since its discovery. However, an increase in cut-off voltage generates problems such as structural damage and detrimental side reactions. Under this premise, a layer of LiTaO3 coating is sputtered on the surface of the LiCoO2 electrode by magnetron sputtering, which aims to inhibit the structural damage and the occurrence of side reactions under high voltage. Meanwhile, the ionic conductor layer of LiTaO3 can also promote the transmission process of Li+ and improve the power density. The results show that the capacity retention rate of the MS-2 h (magnetron sputtering for 2 hours) electrode is 86.6% at 0.5C for 100 cycles in a voltage range of 3.0–4.6 V, and the capacity of 91 mA h g−1 is achieved at 3C. The cycling stability of the electrode is also effectively improved at high temperature, and the capacity retention rate was 40.9% after 100 cycles at 50 °C. This work proves that the coating of LiTaO3 on the electrode surface by magnetron sputtering can effectively inhibit the damage of the electrode structure and the occurrence of side reactions during cycling and can promote the transmission of lithium ions.
相关文献
IF 6.222
PEST (political, environmental, social & technical) analysis of the development of the waste-to-energy anaerobic digestion industry in China as a representative for developing countriesIF 6.367
Ether-functionalization of monoethanolamine (MEA) for reversible CO2 capture under solvent-free conditions with high-capacity and low-viscosityIF 6.367
In situ growth of all-inorganic perovskite nanocrystals on black phosphorus nanosheetsIF 6.222
Outstanding Reviewers for ChemComm in 2020IF 6.222
Life cycle assessment of power-to-gas with biogas as the carbon sourceIF 6.367
The dilemma between acid and base catalysis in the synthesis of benzimidazole from o-phenylenediamine and carbon dioxide‡IF 6.222
Catalytic depolymerization of Kraft lignin to produce liquid fuels via Ni–Sn metal oxide catalystsIF 6.367
An environmentally friendly natural polymer as a universal interfacial modifier for fullerene and non-fullerene polymer solar cellsIF 6.367
Transition metal chemistry in synthetically viable alkaline earth complexes M(Cp)3− (M = Ca, Sr, Ba)IF 6.222
来源期刊
CrystEngComm
CrystEngComm is the forum for the design and understanding of crystalline materials. We welcome studies on the investigation of molecular behaviour within crystals, control of nucleation and crystal growth, engineering of crystal structures, and construction of crystalline materials with tuneable properties and functions. We publish hypothesis-driven research into… how crystal design affects thermodynamics, phase transitional behaviours, polymorphism, morphology control, solid state reactivity (crystal-crystal solution-crystal, and gas-crystal reactions), optoelectronics, ferroelectric materials, non-linear optics, molecular and bulk magnetism, conductivity and quantum computing, catalysis, absorption and desorption, and mechanical properties. Using Techniques and methods including… Single crystal and powder X-ray, electron, and neutron diffraction, solid-state spectroscopy, spectrometry, and microscopy, modelling and data mining, and empirical, semi-empirical and ab-initio theoretical evaluations. On crystalline and solid-state materials. We particularly welcome work on MOFs, coordination polymers, nanocrystals, host-guest and multi-component molecular materials. We also accept work on peptides and liquid crystals. All papers should involve the use or development of a design or optimisation strategy. Routine structural reports or crystal morphology descriptions, even when combined with an analysis of properties or potential applications, are generally considered to be outside the scope of the journal and are unlikely to be accepted.
推荐供应商
江苏双马化工集团上海九芳科技有限公司江苏仁信作物保护技术有限公司浙江省长兴创新超细粉有限公司
CETAC技术
生物链公司尼蒂卡化学
LOBA费恩化学股份公司
ITAS水疗中心
林德公司,林德工程部