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EV Lithium Ion Power Battery Test Standard - Part 2

  2.1.2 Overcharge / overdischarge test In order to evaluate the function of overcharge / overdischarge protection system, it may occur when the battery charging or discharging exceeds the limits recommended by the manufacturer, such as charger failure. Almost all standards and regulations stipulate this test item The important safety hazards during overcharge are electrolyte decomposition, cathode and anode breakdown, diaphragm degradation and exothermic decomposition of lithium coating, resulting in battery overheating and heat out of control. If sufficient temperature is reached (e.g. 200 ℃), the fluorinated adhesive will undergo exothermic reaction with carbon lithium. The factors affecting the test results include the charging rate and the final SOC. For overcharge test, charge the battery according to the charging current specified in the standard until the set end charging conditions (such as 200% SOC, 130% SOC, etc.) are reached, or the protection device is used (such as di...
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EV Lithium Ion Power Battery Test Standard-Part 1

  Power lithium-ion batteries must pass a series of safety tests before they can be used in electric vehicles. These safety tests are to understand and identify the potential weakness and vulnerability of the battery under abnormal conditions, and determine the performance of the battery under severe conditions.  Due to the limitation of space, the author only analyzes and summarizes the international standards and regulations for electrical safety and harsh environmental testing of lithium-ion batteries for electric vehicles, and discusses the problems existing in the standards.   1. Overview of domestic and foreign standards and regulations Important international standards related to the safety and harsh environmental testing of lithium ion battery gas for electric vehicle power include:   IEC62660-2:2011 lithium ion power battery Part 2: reliability and abuse test;   ISO6469-1:2019 safety requirements for electrically driven road vehicles, Part 1: rechargeab...
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Test Standard for Power Lithium Ion Battery

  Battery product standards, especially safety standards, are not only an important basis for restricting quality, but also an important means to standardize market order and promote technological progress. This paper introduces, summarizes and analyzes the existing common standards, and briefly discusses the problems existing in these standard systems.   Common power lithium ion battery standards   international standards   Important power lithium ion battery standards published by IEC include IEC62660-1:2010 lithium ion power battery monomer for electric road vehicles Part 1: performance test and IEC62660-2:2010 lithium ion power battery monomer for electric road vehicles Part 2: reliability and abuse test.  UN 38.3  “United Nations recommendations, standards and test manual on the transport of dangerous goods” issued by the United Nations Transport Committee, the requirements for the test of lithium-ion batteries are aimed at the safety of batteries duri...
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Safety Test of Lithium Ion Battery

  Lithium ion battery, and the whole sample composed of non user replaceable battery / lithium ion battery and its electronic products. For non user replaceable batteries, they shall be installed in electronic products as an overall sample for environmental safety test of lithium-ion batteries in the standard;  For non user replaceable lithium-ion batteries, they can be placed in electronic products as a whole sample, or they can be taken out separately for the environmental safety test of lithium-ion batteries in the standard. It is recommended that they be preferentially selected as a whole sample for testing. As there may be air leakage, smoke, fire or even explosion during the test, necessary protective measures must be taken, such as placing the sample in a ventilation device with explosion-proof function.   Low pressure Test purpose: the  low-pressure test  is used to simulate the impact of low-pressure conditions on the safety of lithium-ion battery durin...
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High Temperature Aging Test Chamber

 How do you know if your products will survive the wear and tear of everyday use? If you’re a manufacturer, then this is something that’s important to you. You want to make sure that your product can withstand rough handling, extreme temperatures or harsh chemicals. The Temperature Aging Test Chamber by DGBELL provides an environment where accurate testing can be done on materials used in manufacturing processes for applications such as electronics, automotive parts, apparel and footwear. It is extremely durable with its stainless-steel body construction which makes it ideal for extended use in industrial environments. This chamber has been designed to simulate subjecting materials inside it to high levels of heat and humidity over time. Our test chamber has the ability to store up to two separate profiles at once. So, users are able to easily switch between different test runs without having any interruptions during their process.   Save money by eliminating field failure tes...
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Analysis on Safety Test of Lithium-ion Battery

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  The safety of lithium-ion batteries is our priority, especially in the fields related to the safety of our lives and property, such as passenger cars. In order to ensure the safety of lithium-ion battery, people have designed a variety of safety tests to ensure the safety of lithium-ion battery in case of abuse. Therefore, from the perspective of battery structure design optimization, how to pass this series of safety tests is a new problem that we need to consider. In view of the safety risks that lithium-ion batteries may encounter in practical use, we designed safety tests such as extrusion, acupuncture, short circuit, overcharge and discharge, high and low temperature. Among many safety tests, extrusion, acupuncture and external short circuit tests simulating internal and external short circuits of lithium-ion batteries are the most conventional and difficult to pass.  The main reason is that the instantaneous current in the two safety tests is too large. Due to ohmic im...
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The Most Efficient Thermal Shock Test Chamber

  You want to be sure that your new product can withstand rapid changes in temperature. Are you thinking about investing in a   thermal shock test chamber ?   We understand how difficult it is for businesses like yours to justify investing thousands of dollars on equipment that might not even work as well as an older model.   Our Thermal Shock Chamber meets and exceeds industry standards, so you can rest easy knowing your products will withstand rapid changes in temperature without breaking down. This will save you time and money by allowing your company to conduct more tests with fewer failures, which means less wasted resources from having to start over again with a new design every time something breaks during testing.   Three zones test c hamber can  enhance  thermal  shock  test  effect Thermal shock is one of the toughest tests that can be performed on electronic components. The term refers to a series of rapid, extreme temperature...
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