A Study on the Battery Parameter Testing Equipment

2011 ◽  
Vol 148-149 ◽  
pp. 67-70
Author(s):  
Feng Xiao ◽  
Liang Han ◽  
Xin Pan Chu ◽  
Jun Feng Xue ◽  
Qi Biao Chen ◽  
...  
Keyword(s):  
High Power ◽  
Formation Process ◽  
Testing Equipment ◽  
Active Materials ◽  
Discharge Performance ◽  
Power Battery ◽  
New Type ◽  
Li Ion ◽  
Charge Discharge

Li-ion power battery which has a broad prospect of application in many industry fields is a new type of high power battery. The formation is a key process in battery manufacture. After formation, the active materials of anode and cathode in the battery can be activated. Consequently, the charge-discharge performance, self-discharge performance, reserve performance and some other comprehensive performances can be improved. Only after formation can batteries achieve the best performance. With the change of formation process, the formation and holding for a single battery has been changed to for a group. Therefor, a new type of battery parameter testing equipment needs to be designed, which can test a group of batteries automatically. This paper will introduce the design of this equipment thoroughly.

A Study on Process of Modular Li-Ion Power Batteries

2013 ◽  
Vol 273 ◽  
pp. 153-156
Author(s):  
Han Liang ◽  
Xiao Feng ◽  
Yuan An Li
Keyword(s):  
High Power ◽  
Internal Resistance ◽  
Power Battery ◽  
New Process ◽  
Good Consistency ◽  
New Type ◽  
Li Ion ◽  
Production Automation ◽  
The Way

Li-ion power battery which has a broad prospect of application in many industry fields is a new type of high power battery. The formation-testing and sorting-packing are necessary processes in battery manufacture. Currently the process of formation almost takes the way of monomer battery, then sorting and packing by measuring the parameters of its internal resistance, voltage and capacity. The operation is complicated and the amount of data is huge. On account of the problem, we propose a new process of battery modularization. It can greatly reduce the workload of the parameter testing when using the optimized process. And batteries can get a good consistency, which is favor of sorting-packing and production automation.

scholarly journals Sustainable Anodes for Lithium- and Sodium-Ion Batteries Based on Coffee Ground-Derived Hard Carbon and Green Binders

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6216
Author(s):  
Hamideh Darjazi ◽  
Antunes Staffolani ◽  
Leonardo Sbrascini ◽  
Luca Bottoni ◽  
Roberto Tossici ◽  
...  
Keyword(s):  
Food Waste ◽  
Anode Materials ◽  
Active Material ◽  
Added Value ◽  
Hard Carbon ◽  
Great Opportunity ◽  
Discharge Performance ◽  
Coffee Ground ◽  
Li Ion ◽  
Charge Discharge

The reuse and recycling of products, leading to the utilization of wastes as key resources in a closed loop, is a great opportunity for the market in terms of added value and reduced environmental impact. In this context, producing carbonaceous anode materials starting from raw materials derived from food waste appears to be a possible approach to enhance the overall sustainability of the energy storage value chain, including Li-ion (LIBs) and Na-ion batteries (NIBs). In this framework, we show the behavior of anodes for LIBs and NIBs prepared with coffee ground-derived hard carbon as active material, combined with green binders such as Na-carboxymethyl cellulose (CMC), alginate (Alg), or polyacrylic acid (PAA). In order to evaluate the effect of the various binders on the charge/discharge performance, structural and electrochemical investigations are carried out. The electrochemical characterization reveals that the alginate-based anode, used for NIBs, delivers much enhanced charge/discharge performance and capacity retention. On the other hand, the use of the CMC-based electrode as LIBs anode delivers the best performance in terms of discharge capacity, while the PAA-based electrode shows enhanced cycling stability. As a result, the utilization of anode materials derived from an abundant food waste, in synergy with the use of green binders and formulations, appears to be a viable opportunity for the development of efficient and sustainable Li-ion and Na-ion batteries.

Research of Li-Ion Battery’s Equalizer Circuit Based on TL431

2014 ◽  
Vol 651-653 ◽  
pp. 1056-1059
Author(s):  
Hao Ming Zhang ◽  
Hong Li ◽  
Lian Soon Peh
Keyword(s):  
System Performance ◽  
Lithium Battery ◽  
Li Ion Battery ◽  
Discharge Time ◽  
Large Power ◽  
Power Battery ◽  
New Type ◽  
Li Ion ◽  
The Difference ◽  
Lower Voltage

Li-ion battery, as a new type of energy storage equipment, has small size, large power density, high individual voltage, low rate of self-discharging and small self-resistance etc. It substitutes the traditional power battery in AGV.In practical process, due to the difference of battery cells, after a period of charge-discharge time, the upper and lower voltage limits of every unit of batteries become various, seriously affecting the system performance. The idea of upper and lower equalizer is released for this case. Then, a further research is made on the equalizer circuit of li-ion battery. The experiment result proves the correctness of design on several types of lithium battery equalizer circuit.

A Study on Double Plus Chain Mechanism for Li-Ion Power Battery Formation Equipment

2013 ◽  
Vol 650 ◽  
pp. 398-402
Author(s):  
Liang Han ◽  
Feng Xiao ◽  
Lu Zhou
Keyword(s):  
Control System ◽  
Formation Process ◽  
Great Influence ◽  
Chain Mechanism ◽  
Low Speed ◽  
Power Battery ◽  
Signal Input ◽  
Battery Packs ◽  
Li Ion ◽  
Automation Level

The automation level has a great influence on the consistency of batteries. By now, an improvement of formation process has proposed new requirements for the formation equipment. This paper brings forward the application of double plus chain mechanism to formation equipment. The chain running at a low speed, the batteries on it move quickly and smoothly. The stopper can stop them for some specific operations without blocking other battery packs. PLC cooperating with signal input and receiving units makes it easy to meet the control requirements. If process changes, we only need to adjust the location of detection devices and execution units. Thus, the control system is very flexible and adaptive.

A Study on Li-Ion Power Battery Formation Energy Recycling Technology

2012 ◽  
Vol 630 ◽  
pp. 356-359
Author(s):  
Liang Han ◽  
Feng Xiao ◽  
Yuan An Li
Keyword(s):  
Control Strategy ◽  
Formation Energy ◽  
Balance Control ◽  
Pwm Rectifier ◽  
Transfer Energy ◽  
Energy Feedback ◽  
Power Battery ◽  
Grid Scheme ◽  
New Type ◽  
Li Ion

Li-ion power battery which has a broad prospect of application in many industry fields is a new type of high power battery. The formation is a necessary process in battery manufacture. Every battery should be charged and discharged several times. On account of the current li-ion power battery’s problem of great amount of energy waste for using conventional techniques in the process of formation, two schemes about formation energy recycling are proposed. One of the schemes is to transfer energy from discharging batteries to charging batteries. It uses energy balance control strategy, and the efficiency can reach to 98%. The other one which uses PWM rectifier is energy feedback to grid scheme. The efficiency can reach to 95%.

Fabrication and Properties of a New Type Micro Super-Capacitor

2013 ◽  
Vol 562-565 ◽  
pp. 102-107
Author(s):  
Ya Jiang Yin ◽  
Xiao Feng Wang ◽  
Wu Shuang Lu ◽  
Xiang Yu Li ◽  
Zheng You
Keyword(s):  
Layer Structure ◽  
Ruthenium Oxide ◽  
Impedance Analysis ◽  
Test System ◽  
High Rate ◽  
Electrochemical Characteristics ◽  
Super Capacitor ◽  
Discharge Performance ◽  
New Type ◽  
Charge Discharge

A new type of micro super-capacitor with high working voltage, high over loading, small bulk, and low impedance was fabricated by a new process. The hydrous ruthenium oxide powder was prepared in a solution of RuCl3·xH2O and NaHCO3. Different composites loaded with certain amount of carbon black were synthesized with this technique. Super-capacitor performance was assessed via cyclic voltammetry (CV), charge-discharge studies (DC), and impedance analysis (AC). The results show that the capacitance and resistivity of ruthenium oxide materials were dependent on the sample annealing temperature. The materials heated at 300°C exhibit the highest rate capacitance of 1080 F·g-1. Four to six cells of this capacitor was stacked up in series by conductive films in order to achieve higher working voltage. After packaged in resin, charge/discharge studies and impedance analysis were tested via the electrochemical test system. In the research, super-capacitors with a four-layer structure exhibited fine electrochemical characteristics with high working voltage over 5.5 V and low impedance under 1.5 ohm. Also, it had the ability of high-rate discharge performance and considerable large capacitance.

scholarly journals The Effect of Excessive Sulfate in the Li-Ion Battery Leachate on the Properties of Resynthesized Li[Ni1/3Co1/3Mn1/3]O2

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6672
Author(s):  
Jimin Lee ◽  
Sanghyuk Park ◽  
Mincheol Beak ◽  
Sang Ryul Park ◽  
Ah Reum Lee ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Acid Leaching ◽  
Precipitation Method ◽  
Electrochemical Performances ◽  
Active Materials ◽  
Sem Images ◽  
X Ray ◽  
Li Ion ◽  
Co Precipitation ◽  
Charge Discharge

In order to examine the effect of excessive sulfate in the leachate of spent Li-ion batteries (LIBs), LiNi1/3Co1/3Mn1/3O2 (pristine NCM) and sulfate-containing LiNi1/3Co1/3Mn1/3O2 (NCMS) are prepared by a co-precipitation method. The crystal structures, morphology, surface species, and electrochemical performances of both cathode active materials are studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and charge-discharge tests. The XRD patterns and XPS results identify the presence of sulfate groups on the surface of NCMS. While pristine NCM exhibits a very dense surface in SEM images, NCMS has a relatively porous surface, which could be attributed to the sulfate impurities that hinder the growth of primary particles. The charge-discharge tests show that discharge capacities of NCMS at C-rates, which range from 0.1 to 5 C, are slightly decreased compared to pristine NCM. In dQ/dV plots, pristine NCM and NCMS have the same redox overvoltage regardless of discharge C-rates. The omnipresent sulfate due to the sulfuric acid leaching of spent LIBs has a minimal effect on resynthesized NCM cathode active materials as long as their precursors are adequately washed.

scholarly journals Spray printing of self-assembled porous structures for high power battery electrodes

2018 ◽  
Vol 6 (27) ◽  
pp. 13133-13141 ◽  
Author(s):  
Sang Ho Lee ◽  
Amoghavarsha Mahadevegowda ◽  
Chun Huang ◽  
Jack D. Evans ◽  
Patrick S. Grant
Keyword(s):  
High Power ◽  
Layer By Layer ◽  
Porous Structures ◽  
Current Collectors ◽  
Power Battery ◽  
Li Ion ◽  
Porous Channels ◽  
Self Assembled ◽  
Power Capability

Self-assembled porous structures were manufactured directly onto current collectors based on layer-by-layer spray printing of TiO2(B) nanotubes. The through-thickness porous channels in the electrode structures enabled the efficient penetration of the liquid Li-ion electrolyte into the resulting coral-like electrode, leading to an improvement in thickness-dependent power capability.

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