Light‐Motivated SnO 2 /TiO 2 Heterojunctions Enabling the Breakthrough in Energy Density for Lithium‐Ion Batteries

2021 ◽  
pp. 2103558
Author(s):  
Chen Hu ◽  
Ling Chen ◽  
Yanjie Hu ◽  
Aiping Chen ◽  
Long Chen ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion

Experimental and numerical analysis to identify the performance limiting mechanisms in solid-state lithium cells under pulse operating conditions

2019 ◽  
Vol 21 (41) ◽  
pp. 22740-22755 ◽  
Author(s):  
Mei-Chin Pang ◽  
Yucang Hao ◽  
Monica Marinescu ◽  
Huizhi Wang ◽  
Mu Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Numerical Analysis ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Safety Concern ◽  
Lithium Ion ◽  
Thermal Runaway ◽  
Operating Conditions ◽  
Lithium Cells

Solid-state lithium batteries could reduce the safety concern due to thermal runaway while improving the gravimetric and volumetric energy density beyond the existing practical limits of lithium-ion batteries.

Recent progress of nanostructured metal chalcogenides and their carbon-based hybrids for advanced potassium battery anodes

2021 ◽  
Author(s):  
Zhiyong Li ◽  
Rui Sun ◽  
Zhaoxia Qin ◽  
Xinlong Liu ◽  
Caihong Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Recent Progress ◽  
Lithium Ion ◽  
Potassium Ion ◽  
Metal Chalcogenides ◽  
Nanostructured Metal ◽  
Carbon Based

Investigation on rechargeable potassium-ion batteries (PIBs) has been revitalized owing to the unique characteristics of abundant reserves and comparable energy density over lithium-ion batteries (LIBs), which holds huge potential for...

Battery-on-Separator: A platform technology for arbitrary-shaped lithium ion batteries for high energy density storage

2021 ◽  
Vol 490 ◽  
pp. 229527
Author(s):  
Min Wang ◽  
Wentao Yao ◽  
Peichao Zou ◽  
Shengyu Hu ◽  
Haojie Zhu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Platform Technology

scholarly journals MgFeSiO4 as a potential cathode material for magnesium batteries: ion diffusion rates and voltage trends

2017 ◽  
Vol 5 (25) ◽  
pp. 13161-13167 ◽  
Author(s):  
Jennifer Heath ◽  
Hungru Chen ◽  
M. Saiful Islam
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Diffusion Rates ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries

Developing rechargeable magnesium batteries has become an area of growing interest as an alternative to lithium-ion batteries largely due to their potential to offer increased energy density from the divalent charge of the Mg ion.

Tailoring atomic distribution in micron-sized and spherical Li-rich layered oxides as cathode materials for advanced lithium-ion batteries

2016 ◽  
Vol 4 (20) ◽  
pp. 7689-7699 ◽  
Author(s):  
Peiyu Hou ◽  
Guoran Li ◽  
Xueping Gao
Keyword(s):  
Thermal Stability ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Concentration Gradient ◽  
Lithium Ion ◽  
Cycle Life ◽  
Layered Oxides ◽  
Long Cycle ◽  
Long Cycle Life

A concentration-gradient doping strategy is introduced into micron-sized spherical Li-rich layered oxides. As a result, they exhibit high volumetric energy density, long cycle life and enhanced thermal stability.

scholarly journals LiCoO2/Graphite Cells with Localized High Concentration Carbonate Electrolytes for Higher Energy Density

Liquids ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 60-74
Author(s):  
Xin Ma ◽  
Peng Zhang ◽  
Huajun Zhao ◽  
Qingrong Wang ◽  
Guangzhao Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
High Voltage ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Porous Electrodes ◽  
Dramatic Improvement ◽  
Effective Strategy ◽  
High Concentration ◽  
Mixed Carbonate

Widening the working voltage of lithium-ion batteries is considered as an effective strategy to improve their energy density. However, the decomposition of conventional aprotic electrolytes at high voltage greatly impedes the success until the presence of high concentration electrolytes (HCEs) and the resultant localized HCEs (LHCEs). The unique solvated structure of HCEs/LHCEs endows the involved solvent with enhanced endurance toward high voltage while the LHCEs can simultaneously possess the decent viscosity for sufficient wettability to porous electrodes and separator. Nowadays, most LHCEs use LiFSI/LiTFSI as the salts and β-hydrofluoroethers as the counter solvents due to their good compatibility, yet the LHCE formula of cheap LiPF6 and high antioxidant α-hydrofluoroethers is seldom investigated. Here, we report a unique formula with 3 mol L−1 LiPF6 in mixed carbonate solvents and a counter solvent α-substituted fluorine compound (1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropylether). Compared to a conventional electrolyte, this formula enables dramatic improvement in the cycling performance of LiCoO2//graphite cells from approximately 150 cycles to 1000 cycles within the range of 2.9 to 4.5 V at 0.5 C. This work provides a new choice and scope to design functional LHCEs for high voltage systems.

scholarly journals Revisiting Olivine Phosphate and Blend Cathodes in Lithium Ion Batteries for Electric Vehicles

2021 ◽  
Author(s):  
Yujing Bi ◽  
Deyu Wang
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Technology Development ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
And Performance ◽  
Battery Technology ◽  
Olivine Phosphate

As electric vehicle market growing fast, lithium ion batteries demand is increasing rapidly. Sufficient battery materials supplies including cathode, anode, electrolyte, additives, et al. are required accordingly. Although layered cathode is welcome in high energy density batteries, it is challenging to balance the high energy density and safety beside cost. As consequence, olivine phosphate cathode is coming to the stage center again along with battery technology development. It is important and necessary to revisit the olivine phosphate cathode to understand and support the development of electric vehicles utilized lithium ion batteries. In addition, blend cathode is a good strategy to tailor and balance cathode property and performance. In this chapter, blend cathode using olivine phosphate cathode will be discussed as well as olivine phosphate cathode.

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