scholarly journals Novel Practical Life Cycle Prediction Method by Entropy Estimation of Li-Ion Battery

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 487
Author(s):  
Tae-Kue Kim ◽  
Sung-Chun Moon
Keyword(s):  
Lithium Ion Batteries ◽  
Prediction Method ◽  
Lithium Ion ◽  
Estimation Accuracy ◽  
Battery Life ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Basic Law ◽  
Life Problems ◽  
Li Ion

The growth of the lithium-ion battery market is accelerating. Although they are widely used in various fields, ranging from mobile devices to large-capacity energy storage devices, stability has always been a problem, which is a critical disadvantage of lithium-ion batteries. If the battery is unstable, which usually occurs at the end of its life, problems such as overheating and overcurrent during charge-discharge increase. In this paper, we propose a method to accurately predict battery life in order to secure battery stability. Unlike the existing methods, we propose a method of assessing the life of a battery by estimating the irreversible energy from the basic law of entropy using voltage, current, and time in a realistic dimension. The life estimation accuracy using the proposed method was at least 91.6%, and the accuracy was higher than 94% when considering the actual used range. The experimental results proved that the proposed method is a practical and effective method for estimating the life of lithium-ion batteries.

scholarly journals Dependence of Li-Ion Battery Energy Density on Separator Thickness

2021 ◽  
Author(s):  
gaolong zhu ◽  
yuyu he ◽  
yunlong deng ◽  
ming wang ◽  
xiaoyan liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Rational Design ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Li Ion ◽  
Battery Energy

Abstract High energy density lithium-ion batteries are urgently needed due to the rapid growth demands of electric vehicles, electronic devices, and grid energy storage devices. There is still significant opportunity to improve the energy density of existing state-of-the-art lithium-ion batteries by optimizing the separator thickness, which is usually ignored. Here, the dependence of battery gravimetric and volumetric energy densities on separator thickness has been quantitatively discussed in different type Li-ion batteries by calculations combined with experiments. With a decrease in separator thickness, the volumetric energy density is greatly improved. Meanwhile, the gravimetric energy densities are significantly improved as the electrolyte soaking in the separator is reduced. The gravimetric and volumetric energy densities of graphite (Gr) | NCM523 cells enable to increase 11.5% and 29.7%, respectively, by reducing the thickness of separator from 25 μm to 7 μm. Furthermore, the Li | S battery exhibits an extremely high energy density of 664.2 Wh Kg-1 when the thickness of the separator is reduced to 1 μm. This work sheds fresh light on the rational design of high energy density lithium-ion batteries.

Quinone/ester-based oxygen functional group-incorporated full carbon Li-ion capacitor for enhanced performance

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 3677-3685 ◽  
Author(s):  
Peng Cai ◽  
Kangyu Zou ◽  
Guoqiang Zou ◽  
Hongshuai Hou ◽  
Xiaobo Ji
Keyword(s):  
Energy Storage ◽  
Lithium Ion Batteries ◽  
Functional Group ◽  
Lithium Ion ◽  
Oxygen Functional Group ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Li Ion

Lithium ion capacitors (LICs) are regarded as one of the most promising energy storage devices since they can bridge the gap between lithium ion batteries and supercapacitors.

scholarly journals Carbon dots supported upon N-doped TiO2 nanorods applied into sodium and lithium ion batteries

2015 ◽  
Vol 3 (10) ◽  
pp. 5648-5655 ◽  
Author(s):  
Yingchang Yang ◽  
Xiaobo Ji ◽  
Mingjun Jing ◽  
Hongshuai Hou ◽  
Yirong Zhu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Carbon Dots ◽  
Rate Capability ◽  
Lithium Ion ◽  
Tio2 Nanorods ◽  
Battery Life ◽  
Doped Tio2 ◽  
Li Ion

N-doped TiO2 decorated with C-dots shows superior rate capability and extended battery life when utilized in Li-ion and Na-ion batteries.

scholarly journals Non-Inverting Cascaded Bidirectional Buck-Boost DC-DC Converter with Average Current Mode Control for Lithium-Ion Battery Charger

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Heri Suryoatmojo ◽  
Indra Anugrah Pratama ◽  
Soedibyo .
Keyword(s):  
Energy Storage ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Current Mode ◽  
Boost Converter ◽  
Constant Current ◽  
Voltage Gain ◽  
Battery Charger ◽  
Energy Storage Devices ◽  
Li Ion

In order to develop renewable energy, it also needs to enhance the developing of supporting elements. For example, lithium-ion batteries as a component of energy storage. Lithium-ion batteries (Li-ion) have been chosen as energy storage devices for portable equipment, unmanned Aerial Vehicle (UAV) and grid storage systems. But there is a problem such as the process of charging the battery for UAV. Conventional converters used in those chargers have disadvantages such as limited power, lower voltage gain and also high current stress. Therefore, such converters are not efficient to be used for charging the battery. This paper proposes a cascaded bidirectional buck-boost converter for charging the battery. This converter can be operated bidirectional and have better rated power and higher voltage gain. Also, this topology has the same polarity with the input. From the test results, the converter can work in either forward or backward power flow. This converter is working in both buck or boost mode and has an efficiency of 83% in buck mode and 81% for boost mode. The charging process is about 83 minutes until SOC approximately 90 – 95.Keywords: battery charger, cascaded bidirectional buck – boost converter, constant current, li-ion introduction.

Designing Energy-Storage Devices from Textile Materials

2012 ◽  
Vol 441 ◽  
pp. 231-234 ◽  
Author(s):  
Xiang Wu Zhang ◽  
Li Wen Ji ◽  
Zhan Lin ◽  
Ying Li
Keyword(s):  
Energy Storage ◽  
Lithium Ion Batteries ◽  
21St Century ◽  
Lithium Ion ◽  
Electrospun Nanofibers ◽  
High Energy ◽  
Energy Storage Devices ◽  
Textile Materials ◽  
Storage Devices ◽  
Energy Science

Research and development in textiles have gone beyond the conventional applications as clothing and furnishing materials; for example, the convergence of textiles, nanotechnologies, and energy science opens up the opportunity to take on one of the major challenges in the 21st century energy. This presentation addresses the development of high-energy lithium-ion batteries using electrospun nanofibers.

Intercalation and delamination of Ti2SnC with high lithium ion storage capacity

Nanoscale ◽  
2021 ◽  
Author(s):  
Haijiang Wu ◽  
Jiale Zhu ◽  
Liang Liu ◽  
Kequan Cao ◽  
Dan Yang ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Max Phase ◽  
Metal Carbides ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Ion Storage ◽  
Li Ion ◽  
High Energy Storage

Li-ion battery attracts great attentions due to the rapid increasing and urgent demand for high energy storage devices. MAX phase compounds, layered ternary transition metal carbides and/or nitrides, show promise...

Constructing compatible interface between Li7La3Zr2O12 solid electrolyte and LiCoO2 cathode for stable cycling performances at 4.5 V

Nanoscale ◽  
2021 ◽  
Author(s):  
Yuwan Dong ◽  
Panzhe Su ◽  
Guanjie He ◽  
Huiling Zhao ◽  
Ying Bai
Keyword(s):  
Energy Storage ◽  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Interfacial Instabilities ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Tap Density ◽  
High Theoretical Capacity ◽  
Cycling Performances

With high theoretical capacity and tap density, LiCoO2 (LCO) cathode has been extensively utilized in lithium-ion batteries (LIBs) for energy storage devices. However, the bottleneck of structural and interfacial instabilities...

scholarly journals Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries

RSC Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 5958-5992
Author(s):  
Jahidul Islam ◽  
Faisal I. Chowdhury ◽  
Join Uddin ◽  
Rifat Amin ◽  
Jamal Uddin
Keyword(s):  
Energy Storage ◽  
Lithium Ion Batteries ◽  
Electronic Devices ◽  
Lithium Ion ◽  
High Energy ◽  
Energy Storage Devices ◽  
Metal Composites ◽  
Storage Devices ◽  
Power Densities ◽  
Good Cycling Stability

With the rapid propagation of flexible electronic devices, flexible lithium-ion batteries are emerging as the most promising energy supplier among all of the energy storage devices due to high energy and power densities with good cycling stability.

Resynthesis of NMC Type Cathode from Spent Lithium-Ion Batteries: A Review

2021 ◽  
Vol 1044 ◽  
pp. 3-14
Author(s):  
Ahmad Jihad ◽  
Affiano Akbar Nur Pratama ◽  
Salsabila Ainun Nisa ◽  
Shofirul Sholikhatun Nisa ◽  
Cornelius Satria Yudha ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Metal Extraction ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Recycling Process ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Military Equipment ◽  
Battery Recycling ◽  
Li Ion

Li-ion batteries are one of the most popular energy storage devices widely applied to various kinds of equipment, such as mobile phones, medical and military equipment, etc. Therefore, due to its numerous advantages, especially on the NMC type, there is a predictable yearly increase in Li-ion batteries' demand. However, even though it is rechargeable, Li-ion batteries also have a usage time limit, thereby increasing the amount of waste disposed of in the environment. Therefore, this study aims to determine the optimum conditions and the potential and challenges from the waste Li-ion battery recycling process, which consists of pretreatment, metal extraction, and product preparation. Data were obtained by studying the literature related to Li-ion battery waste's recycling process, which was then compiled into a review. The results showed that the most optimum recycling process of Li-ion batteries consists of metal extraction by a leaching process that utilizes H2SO4 and H2O2 as leaching and reducing agents, respectively. Furthermore, it was proceeding with the manufacturing of a new Li-ion battery.

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