Reducing of internal resistance lithium ion battery using glucose addition

At present, the Lithium-ion battery are the most used batteries in a large number of applications because of its high performances. It is important for Lithium-ion battery to make objective and accurate judgment to its performances before the practical application. A multi-channel high precision Lithium-ion battery test system, which could realize complex measure control, was designed in this paper. The system consists of upper computer (PC) and lower computer (control circuit unit). The communication between upper computer and lower computer is through RS-485 bus. The control circuit unit, which is mainly composed of micro-processor, control circuit, data acquisition circuit and protection circuit, can realize the function of testing Lithium-ion battery performances such as charging, discharging, internal resistance. Furthermore, based on actual use conditions it has shown that the system can accurately measure various Lithium-ion performance parameters and the current measurement accuracy can satisfy the test requirements.

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Inconsistency Effect of Internal Resistance on Performance of Lithium-ion Battery Strings

2019 3rd Conference on Vehicle Control and Intelligence (CVCI) ◽

10.1109/cvci47823.2019.8951704 ◽

2019 ◽

Author(s):

Qi Zhang ◽

Naxin Cui ◽

Bin Duan ◽

Yunlong Shang ◽

Chenghui Zhang

Keyword(s):

Lithium Ion Battery ◽

Lithium Ion ◽

Internal Resistance

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An equivalent circuit model analysis for the lithium-ion battery pack in pure electric vehicles

Measurement and Control ◽

10.1177/0020294019827338 ◽

2019 ◽

Vol 52 (3-4) ◽

pp. 193-201 ◽

Cited By ~ 5

Author(s):

Jie Su ◽

Maosong Lin ◽

Shunli Wang ◽

Jin Li ◽

James Coffie-Ken ◽

...

Keyword(s):

Lithium Ion Battery ◽

Equivalent Circuit ◽

Equivalent Circuit Model ◽

Lithium Ion ◽

Internal Resistance ◽

Circuit Model ◽

Battery Pack ◽

Power Pulse ◽

Simulation Error ◽

Joint Experiment

According to the demand of vehicle lithium-ion battery pack, the splice equivalent circuit model is constructed. First, a joint experiment of intermittent discharge and hybrid power pulse characterization, basis of the requirements of parameter identification for the model, is designed to identify the parameters. Study shows that it can identify the parameters. Second, the splice equivalent circuit model of vehicle lithium-ion battery pack is simulated by MATLAB/Simulink, which shows the model is feasible to describe the vehicle lithium-ion battery pack. The simulation error of ohmic internal resistance R0 should be less than 0.05 mΩ. Study suggests that the vehicle lithium-ion battery pack has a stable discharge period within the state-of-charge range of [20%, 80%]. However, when stage of charge is below 20%, vehicle lithium-ion battery pack is no longer stable and the parameters of the splice equivalent circuit model change dramatically.

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Online Internal Resistance Measurement Application in Lithium Ion Battery Capacity and State of Charge Estimation

Energies ◽

10.3390/en11051073 ◽

2018 ◽

Vol 11 (5) ◽

pp. 1073 ◽

Cited By ~ 7

Author(s):

Yun Bao ◽

Wenbin Dong ◽

Dian Wang

Keyword(s):

Lithium Ion Battery ◽

Lithium Ion ◽

Internal Resistance ◽

State Of Charge ◽

Resistance Measurement ◽

Battery Capacity ◽

State Of Charge Estimation

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Key Figure Based Incoming Inspection of Lithium-Ion Battery Cells

Batteries ◽

10.3390/batteries7010009 ◽

2021 ◽

Vol 7 (1) ◽

pp. 9

Author(s):

Kerstin Ryll ◽

Louisa Hoffmann ◽

Oliver Landrath ◽

Frank Lienesch ◽

Michael Kurrat

Keyword(s):

Lithium Ion Battery ◽

Lithium Ion ◽

Cell Voltage ◽

Internal Resistance ◽

Test Procedures ◽

Optimal Test ◽

Average Cell ◽

Process Step ◽

Incoming Inspection ◽

Battery Cells

The cell characterization in the incoming inspection is an important but time and cost intensive process step. In order to obtain reliable parameters to evaluate and classify the cells, it is essential to design the test procedures in such a way that the parameters derived from the data allow the required statements about the cells. Before the focus is placed on the evaluation of cell properties, it is therefore necessary to design the test procedures appropriately. In the scope of the investigations two differently designed incoming inspection routines were carried out on 230 commercial lithium-ion battery cells (LIBs) with the aim of deriving recommendations for optimal test procedures. The derived parameters of the test strategies were compared and statistically evaluated. Subsequently, key figures for the classification were identified. As a conclusion, the capacity was confirmed as an already known important parameter and the average cell voltage was identified as a possibility to replace the usually used internal resistance. With regard to capacity, the integration of CV steps in the discharging processes enables the determination independently from the C-rate. For the average voltage cycles with high C-rates are particularly meaningful because of the significant higher scattering due to the overvoltage parts.

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