Olivine LiMnxFe1-xPO4 Cathode Materials for Lithium Ion Batteries: Restricted Factors of Rate Performances

2021 ◽  
Author(s):  
Li Yang ◽  
Wentao Deng ◽  
Wei Xu ◽  
Ye Tian ◽  
Anni Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density

As a promising cathode material for high performance lithium ion batteries, olivine LiMnxFe1-xPO4 (LMFP) combines the high safety of LiFePO4 and the high energy density of LiMnPO4. However, there are...

Preparation and Characterization of High-Voltage Cathode Material LiNi0.5Mn1.5O4 for Lithium Ion Batteries

2019 ◽  
Vol 953 ◽  
pp. 121-126
Author(s):  
Zhe Chen ◽  
Quan Fang Chen ◽  
Sha Ne Zhang ◽  
Guo Dong Xu ◽  
Mao You Lin ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Synthesis Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Diffusion Path ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

High energy density and rechargeable lithium ion batteries are attracting widely interest in renewable energy fields. The preparation of the high performance materials for electrodes has been regarded as the most challenging and innovative aspect. By utilizing a facile combustion synthesis method, pure nanostructure LiNi0.5Mn1.5O4 cathode material for lithium ion batteries were successfully fabricated. The crystal phase of the samples were characterized by X-Ray Diffraction, and micro-morphology as well as electrochemistry properties were also evaluated using FE-SEM, electrochemical charge-discharge test. The result shows the fabricated LiNi0.5Mn1.5O4 cathode materials had outstanding crystallinity and near-spherical morphologies. That obtained LiNi0.5Mn1.5O4 samples delivered an initial discharge capacity of 137.2 mAhg-1 at the 0.1 C together with excellent cycling stability and rate capability as positive electrodes in a lithium cell. The superior electrochemical performance of the as-prepared samples are owing to nanostructure particles possessing the shorter diffusion path for Li+ transport, and the nanostructure lead to large contact area to effectively improve the charge/discharge properties and the rate property. It is demonstrated that the as-prepared nanostructure LiNi0.5Mn1.5O4 samples have potential as cathode materials of lithium-ion battery for future new energy vehicles.

scholarly journals Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Lu Wang ◽  
Junwei Han ◽  
Debin Kong ◽  
Ying Tao ◽  
Quan-Hong Yang
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Mass

Abstract Lithium-ion batteries (LIBs), which are high-energy-density and low-safety-risk secondary batteries, are underpinned to the rise in electrochemical energy storage devices that satisfy the urgent demands of the global energy storage market. With the aim of achieving high energy density and fast-charging performance, the exploitation of simple and low-cost approaches for the production of high capacity, high density, high mass loading, and kinetically ion-accessible electrodes that maximize charge storage and transport in LIBs, is a critical need. Toward the construction of high-performance electrodes, carbons are promisingly used in the enhanced roles of active materials, electrochemical reaction frameworks for high-capacity noncarbons, and lightweight current collectors. Here, we review recent advances in the carbon engineering of electrodes for excellent electrochemical performance and structural stability, which is enabled by assembled carbon architectures that guarantee sufficient charge delivery and volume fluctuation buffering inside the electrode during cycling. Some specific feasible assembly methods, synergism between structural design components of carbon assemblies, and electrochemical performance enhancement are highlighted. The precise design of carbon cages by the assembly of graphene units is potentially useful for the controlled preparation of high-capacity carbon-caged noncarbon anodes with volumetric capacities over 2100 mAh cm−3. Finally, insights are given on the prospects and challenges for designing carbon architectures for practical LIBs that simultaneously provide high energy densities (both gravimetric and volumetric) and high rate performance.

ChemInform Abstract: LiFe0.8Mn0.2PO4/C Cathode Material with High Energy Density for Lithium-Ion Batteries.

ChemInform ◽  
2012 ◽  
Vol 43 (33) ◽  
pp. no-no
Author(s):  
Zhao-Hui Wang ◽  
Li-Xia Yuan ◽  
Wu-Xing Zhang ◽  
Yun-Hui Huang
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density

Intergrown LiNi0.5Mn1.5O4·LiNi1/3Co1/3Mn1/3O2 composite nanorods as high-energy density cathode materials for lithium-ion batteries

2013 ◽  
Vol 1 (44) ◽  
pp. 13742 ◽  
Author(s):  
Jingang Yang ◽  
Xiaolong Zhang ◽  
Xiaopeng Han ◽  
Fangyi Cheng ◽  
Zhanliang Tao ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Composite Nanorods

LiFe0.8Mn0.2PO4/C cathode material with high energy density for lithium-ion batteries

2012 ◽  
Vol 532 ◽  
pp. 25-30 ◽  
Author(s):  
Zhao-Hui Wang ◽  
Li-Xia Yuan ◽  
Wu-Xing Zhang ◽  
Yun-Hui Huang
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density

Preparation and Characterization of Li1.12K0.05Mn0.57Ni0.24Nb0.02O2 Cathode Material with Highly Improved Rate Cyclic Performance for Lithium Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Cong Liu ◽  
Shuang Zhang ◽  
Yuanyuan Feng ◽  
Xiaowei Miao ◽  
Gang Yang ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Elemental Analysis ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Cyclic Performance

In this work, Li1.12K0.05Mn0.57Ni0.24Nb0.02O2 (LMN-K/Nb) as a novel and high energy density cathode material is successfully synthesized and applied in lithium ion battery. Combining interlayer exchanging and elemental analysis, it...

scholarly journals Facile Synthesis of FeS@C Particles Toward High-Performance Anodes for Lithium-Ion Batteries

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1467
Author(s):  
Xuanni Lin ◽  
Zhuoyi Yang ◽  
Anru Guo ◽  
Dong Liu
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Current Density ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Hierarchical Porous

High energy density batteries with high performance are significantly important for intelligent electrical vehicular systems. Iron sulfurs are recognized as one of the most promising anodes for high energy density lithium-ion batteries because of their high theoretical specific capacity and relatively stable electrochemical performance. However, their large-scale commercialized application for lithium-ion batteries are plagued by high-cost and complicated preparation methods. Here, we report a simple and cost-effective method for the scalable synthesis of nanoconfined FeS in porous carbon (defined as FeS@C) as anodes by direct pyrolysis of an iron(III) p-toluenesulfonate precursor. The carbon architecture embedded with FeS nanoparticles provides a rapid electron transport property, and its hierarchical porous structure effectively enhances the ion transport rate, thereby leading to a good electrochemical performance. The resultant FeS@C anodes exhibit high reversible capacity and long cycle life up to 500 cycles at high current density. This work provides a simple strategy for the mass production of FeS@C particles, which represents a critical step forward toward practical applications of iron sulfurs anodes.

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