Lead Acid Battery Plastic Case
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Lead Acid Energy Storage Battery Plastic Case

Lead Acid Energy Storage Battery Plastic Case

Lead Acid Energy Storage Battery Plastic Case is a core protective component specifically designed for lead-acid energy storage batteries. It is injection-molded from high-quality engineering plastics such as flame-retardant ABS, high-toughness ABS resin, and high-temperature-resistant ABS, meeting domestic and international energy storage safety standards including GB/T and UL. The case offers key advantages including flame retardancy, impact and pressure resistance, corrosion resistance to acids and alkalis, and leak-proof sealing. It serves as an essential component for household energy storage systems, commercial and industrial energy storage stations, communication base station energy storage, and renewable energy storage applications. As a critical protective carrier for lead-acid energy storage batteries, it effectively enhances the operational stability and safety of energy storage systems, supporting the high-quality development of the renewable energy storage industry.

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About
Taizhou Sanding Molding Co., Ltd.

Taizhou Sanding Molding Co., Ltd., established in November 2007, with Wang Tongliang as its legal representative and a registered capital of 2.28 million yuan, is located at No. 1188 Qihang Road, Sanjia Street, Taizhou Bay New Area, Taizhou City, Zhejiang Province, covering an area of ​​28,000 square meters. It is a private manufacturing enterprise with nearly 20 years of experience in the molding industry. The company currently has over 100 employees, including 5 professional technicians, 18 administrative personnel, and over 70 production staff. In 2023, it completed customs import and export registration, possessing independent import and export qualifications. Its current operations are stable, with standardized social security coverage and compliant operations.

Regarding core qualifications and technical strength, the company has been recognized as a National High-tech Enterprise, a Science and Technology-based SME, and an Innovative SME. As one of the drafting units of the national standard for battery plastic casings, it passed ISO9001 quality management system certification in 2008, holds 7 qualification certificates and 5 administrative licenses, and has established a standardized production and quality control system. The company possesses an independent mold design and development team and a complete set of mold processing equipment, accumulating deep expertise in the field of battery shell molds. With the technical support of the Taizhou Plastics Research Institute (a Taizhou partner of the Institute of Materials Technology and Engineering, Chinese Academy of Sciences), it has successfully overcome application challenges related to high-temperature resistant ABS and high-temperature flame-retardant ABS materials. As of December 2025, the company held a total of 43 patents, demonstrating outstanding technology transfer capabilities. In terms of testing and production capacity, the company is equipped with a full set of testing facilities, capable of independently completing tests for core indicators such as impact strength, tensile strength, and flame retardancy. It owns over 60 injection molding machines ranging from 200 grams to 20,000 grams, capable of handling injection molded products weighing up to 15 kilograms per piece, with ample production capacity to flexibly adapt to diverse production needs.

The company focuses on mold manufacturing and plastic product R&D and production as its dual cores, covering the entire chain from design and R&D to production and sales. It also possesses supporting capabilities in new material technology R&D and industrial design. In 2023, the company expanded its business scope, adding technology import and export and goods import and export businesses, actively developing both domestic and international trade. The company's core products are primarily battery casings, focusing on energy storage, communication battery casings and other plastic productS, such as Battery Housing Manufacturer & Supplier . It is a leading lead acid energy storage battery container factory in the downstream battery industry, having supplied Huawei with high-temperature resistant and flame-retardant ABS battery casings in bulk, earning high praise from this leading client. In terms of diversified expansion, the company entered the bathroom plastic products sector in 2016, achieving mass production and serving well-known local bathroom companies in Taizhou. Simultaneously, it has expanded into furniture plastic products, daily necessities plastic parts, and pet supplies, offering a diverse product range tailored to market demands. In 2020, the company successfully won the bid for the smart toilet seat and back cover mold project from Qingdao Weixi Intelligent Technology, demonstrating its technological strength in the bathroom sector. Furthermore, the company also manufactures automotive and motorcycle parts, and plastic parts for motors and water pumps, leveraging its core molding capabilities to extend into other product categories and enhance its business resilience.

In terms of business model and development layout, the company operates primarily under the ODM/OEM model, providing customers with full-process customized services from product design to mass production and delivery. It also undertakes OEM production orders, balancing profit and capacity utilization. Simultaneously, it is steadily exploring the OBM model, developing its own brands to meet the demands of foreign trade transformation. Domestically, the company has cultivated deep roots in downstream industries such as batteries, sanitary ware, and daily necessities, accumulating stable customer resources. Internationally, it completed its registration and commenced its strategic layout in 2023, focusing on advantageous categories such as energy storage battery casings and targeting overseas new energy and daily necessities markets, possessing a solid foundation for foreign trade expansion. Leveraging the advantages of the Taizhou molding industry cluster, the company uses "precision molds + high-quality plastic products" as its core competitiveness, continuously deepening its presence in the new energy battery casing market while expanding into potential categories such as sanitary ware, daily necessities, and pet supplies. It is steadily promoting integrated domestic and international trade development, striving to become a high-quality molding supplier in its niche markets.

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Lead Acid Energy Storage Battery Plastic Case

Lead acid energy storage battery plastic cases are used to house battery plates, electrolytes, terminals, and internal components while providing structural protection and assembly support. They are widely used in energy storage systems, telecom batteries, UPS batteries, solar backup systems, and industrial power applications.

Complete Manufacturing Solution

Taizhou Sanding Molding Co., Ltd. provides integrated manufacturing services including product design review, 3D modeling, mold development, mold flow analysis, prototype verification, injection molding, quality inspection, assembly support, packaging, and export delivery.

Whether customers require standard battery housings or customized battery enclosure projects, we support development based on drawings, samples, technical specifications, or OEM requirements.

Product Range

Lead acid battery plastic cases, energy storage battery housings, battery containers, battery covers, battery lids, telecom battery enclosures, UPS battery cases, industrial battery shells, and customized battery plastic components.

Common Manufacturing Challenges and Solutions

Improving Leak Resistance

Electrolyte leakage is one of the most critical concerns for battery manufacturers because it can affect product reliability and service life. Sanding controls sealing dimensions through precision mold manufacturing and stable molding processes. Sealing surfaces, assembly structures, and welding areas are carefully reviewed during development to improve leak resistance and production consistency.

Reducing the Risk of Cracking

Battery housings must withstand transportation, assembly pressure, stacking loads, and long-term operation. Our engineering team optimizes wall thickness, reinforcing ribs, and structural layouts to improve mechanical strength and reduce the risk of cracking or deformation.

Ensuring Dimensional Accuracy

Accurate dimensions are essential for battery assembly, welding, terminal positioning, and automated production. Sanding uses mold flow analysis, precision tooling, and dimensional inspection procedures to maintain stable product accuracy throughout mass production.

Maintaining Long-term Durability

Energy storage batteries often operate under demanding environmental conditions. Appropriate material selection and structural optimization help improve resistance to moisture, temperature changes, and long-term operational stress.

Material Selection for Battery Housings

Polypropylene (PP)

PP is one of the most widely used materials for lead acid battery cases due to its excellent acid resistance, chemical stability, molding performance, and cost efficiency.

Flame-retardant Materials

For projects requiring enhanced fire safety performance, flame-retardant PP and other specialized materials can be evaluated according to technical requirements and industry standards.

Material Optimization Support

Our team assists customers in evaluating material options based on battery design, operating environment, mechanical requirements, molding feasibility, and cost targets.

Structural Design Considerations

Reinforcing Rib Design

Proper rib structures improve overall strength while minimizing material consumption and reducing the risk of deformation.

Partition and Cell Layout

Internal partition structures must support battery cell positioning while maintaining dimensional stability and assembly efficiency.

Cover and Terminal Areas

Special attention is given to terminal locations, cover fitment, welding zones, and sealing surfaces to support reliable battery assembly.

Why Choose Sanding

Independent Mold Development

In-house mold design and manufacturing help improve development efficiency, mold precision, and long-term production consistency.

Mold Flow Analysis Capability

Mold flow simulation helps optimize gate design, filling balance, shrinkage control, and structural performance before production begins.

Large-scale Production Capacity

With more than 60 injection molding machines, Sanding supports both small-batch development projects and large-scale production requirements.

Quality Control System

Dimensional verification, appearance inspection, assembly testing, and process monitoring help ensure stable product quality throughout production.

OEM and ODM Customization

Custom Battery Housing Development

Sanding supports customized battery housing projects including dimensions, partition layouts, terminal locations, molded logos, identification marks, color matching, flame-retardant material selection, packaging design, and private label manufacturing.

FAQ of Lead Acid Energy Storage Battery Plastic Case

What is a lead acid energy storage battery plastic case used for?

It is used to contain and protect battery cells, electrolytes, terminals, and internal components in energy storage, UPS, telecom, and industrial battery systems.

Why is leak resistance important?

Proper sealing helps improve battery reliability, operational safety, and long-term service performance.

What materials are commonly used?

PP is the most commonly used material due to its acid resistance, chemical stability, and suitability for battery housing applications.

Can flame-retardant battery housings be manufactured?

Yes. Flame-retardant materials can be selected according to project requirements and industry standards.

Can Sanding manufacture custom battery cases?

Yes. We support development from drawings, samples, 3D files, and technical specifications.

Can logos and molded markings be added?

Yes. Customized logos, molded text, identification marks, and branding elements can be integrated into mold designs.

Do you support export packaging?

Yes. Export cartons, pallet packaging, labeling, and customized logistics solutions are available.

What information is required for a quotation?

Useful information includes drawings, samples, battery dimensions, material requirements, annual quantity, logo requirements, and packaging specifications.