Battery Separators Market

Battery Separators Companies - Asahi Kasei Corporation (Japan) and ENTEK (US) are Leading Players in the Battery Separators Market

The global battery separators market is projected to grow from USD 6.3 billion in 2023 to USD 13.0  billion by 2028, at a CAGR of 15.7% during the forecast period. The primary function of battery separators is to separate the positive and negative electrodes by utilizing a polymeric membrane positioned between the charged anode and cathode. Widely applied in consumer electronics, industrial settings, and the automotive industry, these separators play a crucial role in battery technology.

Companies such as Asahi Kasei Corporation (Japan), ENTEK (US), Shanghai Energy New Materials Technology Co., Ltd. (China), SK ie technology (South Korea), Toray Industries, Inc. (Japan), and UBE Corporation (Japan) fall under the winners’ category. These are leading players in the Battery separators market globally. These players have adopted the strategies of acquisitions, expansions, partnerships, and investments to increase their market shares.

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Asahi Kasei Corporation.

Asahi Kasei Corporation, a global Japanese chemical company, is a leading manufacturer of lithium-ion and lead-acid battery separators. Operating in four segments, including material and environmental solutions, the company produces separators such as Hinore, Celgard (lithium-ion), and Daramic (lead-acid). These separators are mainly used in automotive, laptops, smartphones, and other consumer electronics applications. With a strong global presence, the company is actively researching expanding production capacity in Europe and US to support local manufacturing and consumption of separators, focusing on the growth of the battery separator industry.


ENTEK is one of the major battery separator manufacturers in the world, producing three separator technologies, such as AGM, PE, and lithium separators. It leverages this wide range of products for energy storage applications worldwide, such as internal combustion and electric automobiles. For a variety of energy storage and other functional membrane applications, ENTEK manufactures a range of microporous membranes and high-performance materials. It also focusses on new technologies and product innovation. The membranes are used in energy storage, filtration, ion-selective barriers, and both hydrophobic and hydrophilic breathable barriers in medical and sports apparel.

The company designs and builds battery separator lines and parts with its in-house engineering, fabrication, and machining resources. ENTEK provides separators for stationery, SLI, start-stop, deep cycle, and power batteries. The company even offers customer solutions for compounding, fiber-plastic composites, bio resins, food packaging, and sheet extrusion. It provides mechanical and design engineering for plant and equipment manufacturing needs. ENTEK machinery and equipment are produced in Lebanon, Oregon. The company delivers high-performance materials worldwide through manufacturing facilities in US, UK, Japan, China, and Indonesia.

Shanghai Energy New Materials Technology Co., Ltd.

Shanghai Energy New Materials Technology Co., Ltd., also recognized as SEMCORP, is one of the key players in the global market for battery separators. Specializing in the production of wet process separators and coated separators designed for lithium-ion batteries. The company offers ceramic coating, PVDF coating, AFL coating, and high-temperature polymer coatings for high-energy-density chemistries such as the NMC system. The company’s other products are printing packages, packing boxes, liquid wrapping & high-grade wrapping papers, biaxially oriented polypropylene films, and other related products.

SK ie Technology

SK ie technology operates as a subsidiary of SK Innovation, is primarily involved in the production and sale of battery materials. The company offers information material solutions, electronic material solutions, and various products, including battery separators for IT devices, energy storage systems, and electric vehicle (EV) batteries. SK ie technology operates its business through two segments namely LiBS and new business. Within the LiBS segment, the company provides lithium-battery separators. The company has subsidiary manufacturing plants in China and Poland dedicated to producing separators for secondary batteries. The company operates separator production plants in Asia and Europe.

Toray Industries, Inc.

Toray Industries, Inc. is an integrated chemical company that integrates nanotechnology into its processes, leveraging organic synthetic chemistry, polymer chemistry, and biotechnology as core technologies. The company operates through six business segments namely, performance chemicals, life science, environmental engineering, carbon fiber & composite materials, fiber & textile, and others. Toray Industries, Inc. provides battery separators within the performance chemicals segment. In April 2017, Toray completely absorbed its wholly owned  consolidated subsidiary, Toray Battery Separator Film Co., Ltd. (Toray BSF), specializing in the production and marketing of lithium-ion secondary batteries. This strategic move aimed to fortify the group's foundation and meet the growing demand in the lithium-ion battery separator business. Operating globally, Toray has a significant presence in Japan, China, North America, Asia Pacific, and Europe.

UBE Corporation

UBE Corporation is engaged in the manufacturing of a wide range of products utilized in vehicle components, digital appliances, pharmaceuticals, and household goods, in addition to buildings, structures, and other physical infrastructure. The company operates through four business segments, namely polymers & chemicals, specialty products, machinery, and others. The others segment includes purchase and sales, leasing, and control of real estate.

The company's primary line of business is polymers & chemicals, which range from basic chemicals to functionality products in cutting-edge fields and pharmaceuticals. It produces industrial equipment such as conveyors and grinders, as well as molding devices, including die-casting and injection molding machines. Additionally, the company builds steel and bridge structures. UBE offers battery separators under the chemicals segment.

UBE offers separator made of a microporous polyolefin film with a consistent microporous structure created using an innovative dry manufacturing method under polymers & chemicals. The separator is a crucial component of lithium-ion batteries, which is utilized in a variety of applications. The company has operations in North America, Europe, Middle East & Africa, Asia, and Latin America.

Related Reports:

Battery Separators Market by Battery Type (Lead Acid and Li-ion), Material (Polyethylene and Polypropylene), Technology (Dry and Wet), End-Use (Automotive, Consumer Electronics, Industrial), and Region - Global Forecast to 2028

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Battery Separators Market Size,  Share & Growth Report
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