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This section provides an overview for battery case as well as their applications and principles. Also, please take a look at the list of 10 battery case manufacturers and their company rankings. Here are the top-ranked battery case companies as of May, 2025: 1.Viking Plastics, 2.Targray, 3.Kenmold North America.
Table of Contents
A battery case is a container holding the electrolyte in storage.
It plays a key role in storing electrical energy with electrode plates, separators, and other components. In rechargeable batteries such as lead-acid batteries and nickel-metal hydride batteries, chemical reactions caused by the electrolyte enable charge and discharge. The battery case prevents the electrolyte from leaking and protects it from shocks and temperature changes during use.
Materials that are resistant to deterioration from acidic or alkaline electrolytes are typically used. For example, polypropylene is often used in lead-acid batteries due to its excellent acid resistance. Battery cases are also designed with minimal joints to reduce the risk of damage. The interior includes partitions and reinforcement to regulate electrolyte flow and reduce vibration, ensuring stable battery performance.
Battery cases are used in the following applications:
Battery cases are used in lead-acid batteries for automobiles, industrial vehicles, and ships. These batteries must provide a stable and continuous power supply for starting engines and powering lights. Since vehicles are subject to vibration and heat, battery cases must be strong and airtight to support long-term use.
Battery cases are also used in emergency power supplies in buildings and communication facilities. To provide stable power during outages, the case must be made from chemically stable materials and have an easy-to-maintain structure. A durable battery case protects the internal environment and improves equipment reliability.
Battery cases are used to store electricity generated from solar, wind, and other renewable energy sources. Because energy must be stored and supplied as needed, durability and safety are critical. Properly designed battery cases suppress deterioration from repeated charging and discharging, enabling efficient energy use. The choice of material and shape depends on the scale and environment, from residential systems to large-scale facilities.
*Including some distributors, etc.
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Kenmold North America (KNA) is an American contract manufacturer specializing in injection molding and tooling that was established in 1998 as a subsidiary of Kenmold China. Based in Bowling Green, Kentucky, the company offers various molding fabrication capabilities, including gas-assist, MUD and 2-shot mold tooling, as well as injection molding using onsite presses ranging from 25T to 1250T. It also offers printing, painting, coating, and plating services to add color, finishes or protective layers to produced plastic parts or molds. KNA chiefly serves clients in the medical, home appliances, automotive, and consumer electronics industries.
XIAMEN TOB NEW ENERGY TECHNOLOGY Co., LTD., established in 2012, is a manufacturer based in Xiamen, China, specializing in equipment and materials for lithium-ion batteries. The company offers lithium-ion battery and lithium-ion supercapacitor materials, production and testing equipment. Other offerings include battery mixers, battery winding, sealing, and crimping machines as well as electrode coating, slitting, and staking machines. TOB NEW ENERGY serves various industries, including electric vehicles, energy storage systems, and portable electronics. They have designed over 200 lithium-ion battery and supercapacitor production lines for companies and research institutions like Mercedes-Benz AG, Bayerische Motoren Werke (BMW) AG, Massachusetts Institute of Technology (MIT).
Chongqing Chal Precision Aluminum Co. Ltd., established in 1991 and headquartered in China, is a manufacturer of aluminum products and technical solutions. The company specializes in tubes, plates, and various machined parts. It serves diverse industries, including automotive, construction, and transportation. Its products hold CE, CCS, and SGS certifications and maintain strategic partnerships with academic institutions and industrial associations. The company services encompass packaging, assembly, and logistics, backed by after-sales support.
SGL Carbon is located in Wiesbaden, Germany, and is a manufacturer and supplier of graphite as well as composite materials and products founded in 1992 following the merger between SIGRI GmbH and Great Lakes Carbon. The company primarily produces carbon fibers and composites for the aerospace, energy, and automotive sectors. It also offers specialty graphite products for industrial applications such as for battery production, and application-specific process technology plants, such as for industrial pumping or turbine operations. The company is ISO 13485:2016, UL, and CSA-certified, and serves clients in the industrial processing and energy sectors.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Viking Plastics |
16.0%
|
| 2 | Targray |
16.0%
|
| 3 | Kenmold North America |
16.0%
|
| 4 | EMP Tech Co.,Ltd |
12.0%
|
| 5 | ANDRITZ Schuler GmbH |
8.0%
|
| 6 | Chongqing CHAL Precision Aluminium Co. ,Ltd. |
8.0%
|
| 7 | SGL Carbon |
8.0%
|
| 8 | XIAMEN TOB NEW ENERGY TECHNOLOGY Co., LTD. |
8.0%
|
| 9 | Heilongjiang Jinhan Technology Co., Ltd |
4.0%
|
| 10 | Xiamen Apollo Stamping Welding Technology CO.,LTD |
4.0%
|
Derivation Method
The ranking is calculated based on the click share within the battery case page as of May 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
2 | 50.0% |
|
United States of America
|
1 | 25.0% |
|
Germany
|
1 | 25.0% |
