Lead-acid battery response to various formation levels – Part B: Internal resistance

2015 ◽  
Vol 11 ◽  
pp. 126-133 ◽  
Author(s):  
Justin Deveau ◽  
Chris White ◽  
Lukas G. Swan
Keyword(s):  
Internal Resistance ◽  
Lead Acid Battery ◽  
Lead Acid

scholarly journals Internal resistance and temperature change during over-discharge of lead-acid battery

2018 ◽  
Author(s):  
Balázs Broda ◽  
György Inzelt
Keyword(s):  
Temperature Change ◽  
Automotive Industry ◽  
Reference Electrode ◽  
Internal Resistance ◽  
Electronic Systems ◽  
Lead Acid Battery ◽  
Power Sources ◽  
Active Mass ◽  
Electronic Load ◽  
Lead Acid

<p class="PaperAbstract"><span lang="EN-GB">In recent decades, more and more electronic systems (start-stop, drive-by-wire, brake-by-wire) have been developed in the automotive industry therefore reliable power sources are necessary. It is essential to understand thoroughly the detailed behavior of the battery to increase its efficiency, stability and monitorability which is the most popular field nowadays. Over-discharge plays an important role in aging because it increases the probability of initiation of grid corrosion, sulfation and loss of active mass. In this work, the effects of over-discharge of lead-acid battery have been investigated via internal resistance increase and temperature change separately for both the negative and the positive electrode. Most of the measurements were carried out in a prepared test cell (which contained a negative and a positive plate, an Ag│Ag<sub>2</sub>SO<sub>4</sub> reference electrode, a shunt for measuring current accurately) connected to a dummy battery and an electronic load.</span></p>

Design of Armored Vehicles Lead-Acid Battery State Monitoring System

2012 ◽  
Vol 591-593 ◽  
pp. 296-300
Author(s):  
Gang Li ◽  
Yong Cheng Xie ◽  
Guang Sheng Li ◽  
Ning Wei
Keyword(s):  
User Interface ◽  
Monitoring System ◽  
Internal Resistance ◽  
High Accuracy ◽  
Lead Acid Battery ◽  
State Monitoring ◽  
Terminal Voltage ◽  
Armored Vehicles ◽  
Lock In ◽  
Lead Acid

In order to raise the maintenance efficiency of the armored vehicles Lead-Acid battery, this paper introduces an state monitoring system of Lead-Acid battery. The system used the ATMEGA8 as the control core. Through designing measuring circuit of the terminal voltage, internal resistance and temperature as well as building a human-computer interaction user interface using the C++builder, the system can fast and accurately monitors the state of battery. At the same time, we try to use the lock-in amplifying technology to measure the battery inner resistance. The experiment results show that the system easy to use and has a high accuracy.

Usability Evaluation Method for VRLA Battery Measuring Equipment

2017 ◽  
Vol 7 (2) ◽  
pp. 1
Author(s):  
Haifeng Jiang ◽  
Shusheng Lin
Keyword(s):  
Mathematical Model ◽  
Measuring Equipment ◽  
Evaluation Method ◽  
Internal Resistance ◽  
Test Equipment ◽  
Electrochemical Characteristics ◽  
Lead Acid Battery ◽  
Resistance Level ◽  
Resistance Value ◽  
Lead Acid

This paper presents a method for evaluating the availability of lead-acid battery test equipment and designs the corresponding evaluation mathematical model. International standard IEC60896-2 specifies the lead-acid battery internal resistance level. Because the internal resistance value is usually micro-Ohm level and the lead-acid battery has special electrochemical characteristics, it’s very difficult to measure it. Until now no authority can officially provides the actual resistance value for a given battery. However, the industry has agreed that the internal resistance will gradually increases during the use of the battery and the performance of the battery has close relationship with the change of the internal resistance, so even if the measurement equipment can not measure the absolute actual resistance, but as long as the battery can be measured a small change in internal resistance, it has a high availability. In this paper, we propose a micro-incremental verification method and a mathematical model to facilitate, accurately and quickly verify whether the battery internal resistance test equipment can accurately and stably measure the internal resistance of the battery, and provide technical verification reference for selecting the battery measuring equipment. 

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