Product Introduction

HuaceBP-200CClosed cell temperature and rupture temperature testers, based on industry testing methods and developed by multiple engineers from Huace Instruments over the years, have more accurate testing functions and the maximum testing frequency of the equipment can reach1MHzThe direct AC impedance method analyzer is used to improve the accuracy of the test, and the DC electrode heating method is adopted to reduce the interference of grid harmonics on the measuring instrument and the interference of the test signal. In terms of testing functionality, capacitors can also be expandedCLoss and wearDWaiting for testing. It can perform continuous and high-speed measurement functions under different measurement conditions and modes!

Equipment background:

Measure the ion impedance of the diaphragm at high temperatures for diaphragm process and battery design improvement, quality monitoring, and ensuring battery safety. At the same time, the wettability of the diaphragm and electrolyte can also be evaluated. The membrane belongs to a microporous structure, through which ions can pass; At high temperatures, as the micropores of the membrane contract, the ion impedance increases, a process known as closed pores; After the temperature continues to rise, the diaphragm melts and ruptures, causing a decrease in impedance, which is called membrane rupture. A diaphragm with good closed cell rupture characteristics can improve the safety of lithium batteries, especially greatly reducing the risk of static fire in electric vehicles.

Testing principle:

Set the target temperature to achieve temperature rise testing. During the heating process, lithium ions cannot pass through due to the closed pores of the diaphragm. Use resistance method to continue heating the diaphragm. When a hole appears, the resistance tends to decrease.

Product advantages:

1 Heating method: DC heating is used to avoid the influence of AC electric field on weak signals

2 Heating directly through electrodes to avoid significant temperature errors caused by oven heat conduction during testing

3 To avoid electrolyte evaporation due to overheating, apply pressure to the electrode

4 Having a complete sealing device

5 More convenient addition of electrolyte

6 Humanized software settings, clear test parameters and experimental results at a glance

Product Features:

1Technical requirements--All performance indicators must meet the stability and reliability of the device.

2Security--The instrument design fully considers the safety of use, including grounding protection, over temperature protection, high sealing, etc

3Test results--The testing is completed with detectable software to query the sampling test results and test curves.

4Data export--Data can be exportedexcelTemplate, editable for analysis, report content includes information such as resistance, temperature, time, etc., and test curves can be saved.

Product Parameters

modelHuacePB-200C(Customizable)

Sample size:diameter20mm

Test voltage:10mV-2Vrms

Basic impedance measurement accuracy:0.05%

Effective thickness range:450mm

Test electrode: Aluminum alloy

Measurement parameters: resistance, impedance, capacitance, loss, etc

Temperature range: room temperature⸺250℃

heating rate1-10℃/min(Adjustable)

Temperature resolution:0.1℃

Temperature error:±0.5℃

Resistance range:0-999MΩ

Safety: The instrument design fully considers the safety of use, with grounding protection and over temperature protection.

Display page: including current temperature, test curve, settings bar, temperature curve observation, test result observation switchable

Product Parameters

Recently, our company has launched a closed cell temperature rupture temperature tester, mainly for detecting static fires in electric vehicles and lithium battery separators,A diaphragm with good closed cell rupture characteristics can improve the safety of lithium batteries, especially greatly reducing the risk of static fire in electric vehicles.