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Lithium batteries are mainly composed of anode, cathode, electrolyte, separator, and battery shell . A variety of materials are used to manufacture these battery components. However, the material determines the property, and the property will affect the function and safety of the battery.
With the application and popularization of new energy electric vehicles, the research and design of lithium battery management system is of great practical significanceto ensure the normal operation of battery pack and vehicle safety, and improve vehicle performance.
The domestic and foreign test standards for lithium-ion power batteries in terms of mechanical safety are analyzed. A brief overview and summary of domestic and foreign battery safety standards are presented, and some safety test items are shown, such as heating, short circuit, overcharge, overdischarge, and nail penetration.
Nowadays, electric vehicles are equipped with lithium batteries, which provide high power density and rechargeability [16, 17]. Many studies have summarized the test standards related to vehicle power batteries in China [, , , , , , ].
The lithium-ion battery production system should have the functions of detection, display, traceability, and control measures for the factors such as moisture, acne, burr, gas, and harmful impurities that affect the production process of lithium-ion batteries, and it should ensure the effectiveness of these functions and measures.
However, there is no specific test item in the existing standards system for vehicle lithium batteries to specify the inconsistency of the battery. Therefore, it is recommended to establish a corresponding standard for battery sorting into groups after production so as to reduce the inconsistency of the battery module as much as possible.
As an important part of lithium-ion power battery, cathode material accounts for 30% of the cost of NEV power battery and 15% of the whole vehicle; diaphragm accounts for …
As an important part of lithium-ion power battery, cathode material accounts …
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This review analyzes China''s vehicle power battery safety standards system …
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This paper first analyzes the design of the lithium battery management system, then designs the upper computer control system, and finally verifies the effectiveness of the …
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