scholarly journals Cycle-Life Curves Determination and Modelling of Commercially Available Electric Vehicle Batteries

2021 ◽  
Vol 19 ◽  
pp. 287-292
Author(s):  
G. Saldaña ◽  
◽  
José Ignacio San Martín ◽  
F.J. Asensio ◽  
Inmaculada Zamora ◽  
...  
Keyword(s):  
Life Cycle ◽  
Electric Vehicle ◽  
Lithium Ion ◽  
Cycle Life ◽  
Transport Sector ◽  
State Of Health ◽  
Storage Technology ◽  
Life Cycle Optimization ◽  
Global Emissions ◽  
Charge Discharge

In recent decades, there has been a growing concern about the trend of global emissions, and in particular those of the transport sector. In this context, the electric vehicle is a promising technology, with some barriers still to be overcome. Among these deficiencies everything related to storage technology is found. In this sense, lithium-ion batteries are one of the options to be considered, although it is necessary to continuously monitor the state of health. Cycle life vs DoD curves are very useful for characterizing profitability in any application that considers battery storage, as well as life cycle optimization studies. Cycle life refers to the number of charge-discharge cycles that a battery can provide before performance decreases to an extent that it cannot perform the required functions (e.g., 80% compared to a fresh one in electromobility applications). In this paper, a model for calculating the Cycle Life vs DoD curves is proposed, applied to a commercially available electric vehicle, the Renault Zoe. Modelling results show R squared coefficient of determinations above 0.9890.

Lithium-ion battery state-of-health estimation in electric vehicle using optimized partial charging voltage profiles

Energy ◽  
2019 ◽  
Vol 185 ◽  
pp. 1054-1062 ◽  
Author(s):  
Jinhao Meng ◽  
Lei Cai ◽  
Daniel-Ioan Stroe ◽  
Guangzhao Luo ◽  
Xin Sui ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Electric Vehicle ◽  
Lithium Ion ◽  
State Of Health

A comparative life cycle assessment on lithium-ion battery: Case study on electric vehicle battery in China considering battery evolution

2020 ◽  
pp. 0734242X2096663 ◽  
Author(s):  
Shuoyao Wang ◽  
Jeongsoo Yu
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Lithium Ion Battery ◽  
Electric Vehicle ◽  
Lithium Ion ◽  
Collection Rate ◽  
Recycling Industry ◽  
Battery Recycling ◽  
The Future

China has become the largest electric vehicle (EV) market in the world since 2015. Consequently, the lithium-ion battery (LiB) market in China is also expanding fast. LiB makers are continually introducing new types of LiBs into the market to improve LiBs’ performance. However, there will be a considerable amount of waste LiBs generated in China. These waste LiBs should be appropriately recycled to avoid resources’ waste or environmental pollution problems. Yet, because LiBs’ type keeps changing, the environmental impact and profitability of the waste LiB recycling industry in China become uncertain. In this research, we reveal the detailed life cycle process of EVs’ LiBs in China first. Then, the environmental impact of each type of LiB is speculated using the life cycle assessment (LCA) method. Moreover, we clarify how LiBs’ evolution will affect the economic effect of the waste battery recycling industry in China. We perform a sensitivity analysis focusing on waste LiBs’ collection rate. We found that along with LiBs’ evolution, their environmental impact is decreasing. Furthermore, if waste LiBs could be appropriately recycled, their life cycle environmental impact would be further dramatically decreased. On the other hand, the profitability of the waste battery recycling industry in China would decrease in the future. Moreover, it is essential to improve waste LiBs’ collection rate to establish an efficient waste LiB industry. Such a trend should be noticed by the Chinese government and waste LiB recycling operators to establish a sustainable waste LiB recycling industry in the future.

Experimental Study on Depth of Discharge and Cycle Life of Lithium-Ion Battery

2013 ◽  
Vol 319 ◽  
pp. 373-377
Author(s):  
Chan Ming Chen ◽  
Song Hua Deng ◽  
Zhen Po Wang
Keyword(s):  
Experimental Data ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cycle Life ◽  
Calculating Method ◽  
Power Battery ◽  
Depth Of Discharge ◽  
Three Samples ◽  
Life Model ◽  
Charge Discharge

To find out how depth of discharge affecting cycle life of lithium-ion power battery, an experiment was conducted. Three samples of lithium-ion were tested separately with BAITE charge/discharge equipment. Condition of test was set as the same except depth of discharge. Capacity remaining of samples was recorded during testing. Based on processing and analysis of data of the testing, cycle life model of lithium-ion power battery with parameter of depth of discharge was deduced, which was verified by the experimental data. The model provided a theoretical calculating method of cycle life, which would be helpful for precise management of the lithium-ion battery.

scholarly journals STUDI SIFAT ELEKTROKIMIA SEL BATERAI SEKUNDER POUCHCELL LITHIUM ION LIFEPO4/GRAPHITE APLIKASI DAYA TINGGI

2017 ◽  
Vol 2 (3) ◽  
pp. 173-178
Author(s):  
Achmad Subhan ◽  
Bambang Prihandoko
Keyword(s):  
Life Cycle ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
High Power ◽  
Electrochemical Impedance ◽  
Lithium Ion ◽  
Graphite Powder ◽  
Liquid Electrolyte ◽  
Cyclic Voltametry ◽  
Charge Discharge

Abstrak Telah dilakukan pembuatan lembaran katoda dari serbuk LiFePO4 komersial dan anoda dari serbuk Graphite. Lembaran difabrikasi membentuk sel penuh baterai dengan tipe sampel uji berbentuk Pouchcell. Konfigurasi sel adalah LiFePO4//LiPF6//graphite, LiPF6 digunakan sebagai elektrolit cair. Karakterisasi sel dilakukan meliputi uji cyclic voltrametry, charge discharge dan EIS (electrochemical Impedance Spectroscopy. Nilai yg dihasilkan adalah kapasitas mencapai sekitar 80 mAh/gr, dengan tegangan Voc stabil pada nilai 3.28 V. Nilai discharge capacity yang bisa diambil hingga 5C  lebih dari 40%, dengan life cycle pada 50 siklus kehilangan kapasitas hanya kurang dari 5%. Kata-kata kunci: pouchcell, cyclic voltametry, electrochemical impedance spectroscopy, baterai high power. Abstract In this work, have been fabricated cathode electrode from  LiFePO4 powder and anode from  commercial Graphite powder. Full cell batteries fabricated in  Pouchcell shaped test samples. Lithium ion  cell configuration are LiFePO4  // LiPF6 // graphite, 1 M LiPF6 in EC/DEC is used as the liquid electrolyte. Cell batteries Perfomance characterized by some  tests conducted on the cyclic voltrametry, charge-discharge and EIS (electrochemical impedance spectroscopy. The result  value are the capacity  reached  approximately 80 mAh / g, with the voltage Voc perfectly stable  at 3.28 V. The discharged capacity  can be taken up to 5C almost over 40% , with  after 50 cycles for life cycle test the capacity loss is retain still   95% at 0.33C. Keywords: pouchcell, cyclic voltametry, electrochemical impedance spectroscopy, high power battery.

scholarly journals Combination of LiCs and EDLCs with Batteries: A New Paradigm of Hybrid Energy Storage for Application in EVs

2018 ◽  
Vol 9 (4) ◽  
pp. 47 ◽  
Author(s):  
Immanuel N. Jiya ◽  
Nicoloy Gurusinghe ◽  
Rupert Gouws
Keyword(s):  
Energy Storage ◽  
Electric Vehicle ◽  
Storage System ◽  
Lithium Ion ◽  
Energy Storage System ◽  
Cycle Life ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Unit Power ◽  
Multiple Input

The research presented in this paper proposes a hybrid energy storage system that combines both electrolytic double-layer capacitors (EDLCs) also known as supercapacitors (SCs) and lithium-ion capacitors (LiCs) also known as hybrid capacitors (HCs) with a battery through a multiple input converter. The proposal was verified in simulation and validated by implementing a laboratory prototype. A new hybridisation topology, which reduces the amount of resource requirement when compared to the conventional hybridisation topology, is introduced. An electric vehicle (EV) current profile from previous research was used to test the performance of the proposed topology. From the results obtained, the hybridisation topology proposed in this research had the lowest cost per unit power at 14.81 $/kW, the lowest cost per unit power to energy, and available power to energy ratio, both at 1:1.3, thus making it a more attractive hybridisation topology than the two conventional alternatives. The multiple input converter built had efficiency values in excess of 80%. The key take away from this paper is that using the proposed hybridisation topology, the battery is less often required to supply energy to the electric vehicle, and so, its cycle life is preserved. Furthermore, since the battery is not used for the repeated acceleration and deceleration in the entire driving cycle, the battery’s cycle life is further preserved. Furthermore, since the battery is not the only storage device in the energy storage system, it can be further downsized to best fit the required base load; therefore, leading to a more optimized energy storage system by reducing the weight and volume of space occupied by the energy storage system, while also achieving better efficiencies.

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