Molecular Dynamics Study of Energy Storage Device

Author(s):  
Sheriden Smith ◽  
Young Ho Park

Currently, the dominating energy storage device remains the battery, particularly the lithium battery. Lithium/lithium-ion batteries are used for various applications. For example, lithium battery powered pipeline inspection tools are used by the oil and gas industry for internal inspection of pipelines. Lithium batteries are complex devices whose performance optimization requires a good understanding of physical processes that occur on multiple time and length scales. Optimization of the electrolyte, in particular, needs detailed, fundamental, molecular level understanding of the chemical and mechanical features that lead to stable electrolytes such as good interfacial lithium transport properties, thermal stability and safety. In this work, we use molecular dynamics (MD) computational technique to investigate thermodynamic and dynamics properties for various carbonate-based electrolyte systems of lithium-ion batteries.

2020 ◽  
Vol 8 (6) ◽  
pp. 2875-2897 ◽  
Author(s):  
Prem Wicram Jaschin ◽  
Yirong Gao ◽  
Yao Li ◽  
Shou-Hang Bo

As economically viable alternatives to lithium-ion batteries, magnesium-ion-based all-solid-state batteries have been researched to meet the criteria for an ideal energy storage device.


Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4000
Author(s):  
Eunhwan Kim ◽  
Juyeon Han ◽  
Seokgyu Ryu ◽  
Youngkyu Choi ◽  
Jeeyoung Yoo

For decades, improvements in electrolytes and electrodes have driven the development of electrochemical energy storage devices. Generally, electrodes and electrolytes should not be developed separately due to the importance of the interaction at their interface. The energy storage ability and safety of energy storage devices are in fact determined by the arrangement of ions and electrons between the electrode and the electrolyte. In this paper, the physicochemical and electrochemical properties of lithium-ion batteries and supercapacitors using ionic liquids (ILs) as an electrolyte are reviewed. Additionally, the energy storage device ILs developed over the last decade are introduced.


2021 ◽  
Vol 1 (3) ◽  
pp. 49-56
Author(s):  
S.M. Zuyev ◽  
◽  
R.A. Maleyev ◽  
YU.M. Shmatkov ◽  
M.YU. Khandzhalov ◽  
...  

This article provides a comparative analysis of various energy storage devices. A detailed review and analysis of molecular energy storage units is carried out, their main characteristics and parame-ters, as well as their application areas, are determined. The main types of molecular energy storage are determined: electric double layer capacitors, pseudo capacitors, hybrid capacitors. Comparison of the characteristics of various batteries is given. The parameters of various energy storage devices are presented. The analysis of molecular energy storage devices and accumulators is carried out. Ttheir advantages and disadvantages are revealed. It has been shown that molecular energy storage or double layer electrochemical capacitors are ideal energy storage systems due to their high specific energy, fast charging and long life compared to conventional capacitors. The article presents oscillograms of a lithium-ion battery with a voltage of 10.8 V at a pulsed load current of 2A of a laptop with and without a molecular energy storage device, as well as oscil-lograms of a laptop with DVD lithium-ion battery with a voltage of 10.8 V with a parallel shutdown of a molecular energy storage device with a capacity of 7 F and without it. The comparative analysis shows that when the molecular energy storage unit with a 7 F capacity is switched on and off, transient processes are significantly improved and there are no supply voltage dips. The dependenc-es of the operating time of a 3.6 V 600 mAh lithium-ion battery at a load of 2 A for powering mo-bile cellular devices with and without a molecular energy storage are given. It is shown that when the molecular energy storage device is switched on, the battery operation time increases by almost 20%.


Author(s):  
Shuaiguo Zhang ◽  
Guoyou Yin ◽  
Haipeng Zhao ◽  
Jie Mi ◽  
Jie Sun ◽  
...  

Sodium-ion batteries are recognized as an alternative energy storage device for lithium-ion batteries.


2021 ◽  
Author(s):  
Md. Mahmud

The energy and storage sector of today's world is constantly facing challenges in terms of the performance, functionality of the fundamental materials. Graphene is a Carbon-based material that is extensively investigated as anode material for rechargeable secondary Lithium-ion batteries (LIBs) because of its amazing superlative properties i.e. mechanical, optical, electrical, thermal, and sensing properties. Graphene has extraordinary electron mobility (2.5×105 cm2 V-1 s-1) and a large surface area (2630 m2g-1) and these interesting properties make it a suitable material for the energy storage device. Also Nanostructure evolution of graphene, its electrochemical performance raised to a new stage. In this review, we focus on the electrochemical performance of graphene and Graphene-based nanocomposite materials in Lithium-ion Batteries and also focuses on the synthesis route of graphene which is used both industrially and commercially.


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