Leak-Proof & Explosion-Proof! Aluminum Battery Cases Safety Update

In recent years, with the development of the battery industry, the demand for battery protection components has been on the rise. However, safety issues have always been a major concern. The 2025 "Safety Requirements for Power Batteries for Electric Vehicles" issued by the Ministry of Industry and Information Technology clearly stipulates that batteries should not leak or explode, which puts forward higher requirements for the safety of aluminum battery cases.

 

1. Preventing Electrolyte Leakage: These protective cases play a crucial role in preventing electrolyte leakage. Leakage can not only damage the battery itself but also pose a safety hazard-whether it's a lithium ion battery pack in new energy vehicles or a lifepo4 battery pack in energy storage systems. A well-sealed aluminum battery box can effectively avoid this problem.

 

2.Reducing the Risk of Thermal Runaway: For lithium ion battery packs, thermal runaway is a serious safety issue. Cases with good heat dissipation and explosion-proof performance can help reduce the risk of thermal runaway, ensuring the safety of the battery system even in high-temperature environments.

 

: With the continuous improvement of industry standards, such as the requirement of passing the bottom impact test and 300-cycle fast-charging test for prismatic cell case and other battery components, leak-proof and explosion-proof protective cases are more in line with the development needs of the industry.

 

 

These protective cases are widely used in various fields. In the new energy vehicle industry, they are used to protect power batteries-for example, matching the prismatic cell case of lithium ion battery packs to ensure stability and reliability under different working conditions like rapid acceleration or low-temperature startup. In the energy storage system, aluminum battery boxes are used to package lifepo4 battery packs, which can prevent safety accidents caused by over-charging, over-discharging, or external impact. In the consumer electronics field, such protective cases are also commonly used in the packaging of small lithium ion battery packs for smartphones and laptops. Aluminum battery cases are the most widely used type in these scenarios due to their excellent performance.

 

 

1. New Material Applications: Some new aluminum alloy materials are being applied to battery cases, including those for aluminum battery boxes and prismatic cell cases. These materials have higher strength and better corrosion resistance, further improving the leak-proof and explosion-proof performance of the products.

 

2. Innovative Design: For example, the multi-cavity design of cases used for lifepo4 battery packs can improve airtightness and structural strength. The optimized design of explosion-proof lines on can make the battery release pressure in time during an impact, reducing the risk of explosion.

 

3. Coating Technology: The application of nickel-based flame-retardant coatings and other technologies on the surface of battery cases-whether for aluminum battery boxes or small consumer electronics cases-can improve the ignition temperature and critical oxygen pressure, effectively enhancing the fire-resistance and explosion-proof performance.

 

 

Xiamen APOLLO is a professional company engaged in the export of new energy electrical hardware stamping and welding products. Our aluminum battery cases have the following technical characteristics: First, they have excellent airtightness, which can effectively prevent electrolyte leakage for both lithium ion battery packs and lifepo4 battery packs. Second, the use of high-quality aluminum alloy materials and advanced manufacturing processes ensures the strength and durability of the cases, with good explosion-proof performance even for precision prismatic cell cases.

 

Our company also has many advantages. In terms of transportation, we can provide sea, land, and air transportation methods to ensure timely delivery of products like aluminum battery boxes and custom cases. In terms of certificates, our products have obtained a series of relevant certificates (ISO9001-2015, IATF16949, ROHS, REACH), which can provide guarantee for product quality and safety. In addition, we can provide customized services according to the different needs of customers, such as customizing the size, shape, and function of cases for aluminum battery boxes or prismatic cell cases to meet the special requirements of different customers.