
The global Lithium-Ion Battery Wet Separator market size is predicted to grow from US$ 3963 million in 2025 to US$ 6035 million in 2031; it is expected to grow at a CAGR of 7.3% from 2025 to 2031.
The wet process is also known as the thermally induced phase separation method. The wet process adopts the principle of thermally induced phase separation. The plasticizer is mixed with the polyolefin resin. Solid-liquid phase/liquid-liquid phase separation occurs during the cooling of the molten mixture. The membrane is pressed and heated to a temperature close to the melting point. It is then stretched to align the molecular chains. The film is kept warm and a volatile solvent is used to extract the plasticizer from the film to produce a diaphragm. Separator usually refers to a porous membrane material located between the positive and negative electrodes of a battery. Its main function is to prevent the positive and negative electrodes from directly contacting each other and causing a short circuit, while allowing electrolyte ions to pass through to maintain the battery's charge and discharge process.
The driving factors of the lithium-ion battery wet-process diaphragm market are as follows:
The market demand continues to expand:
New energy vehicle market: Global new energy vehicle sales are expected to continue to grow, directly driving the demand for wet-process diaphragms. For example, global new energy vehicle sales reached 18.236 million units in 2024 and are expected to reach 44.050 million units in 2030. As the world's largest market, China's new energy vehicle penetration rate has reached 47.6% in 2024 and is expected to exceed 50% in 2025.
Energy storage market: With the popularization of renewable energy and the construction of smart grids, the demand for high-safety and long-life batteries in energy storage systems has surged. Due to its higher chemical stability and high temperature resistance, the proportion of wet-process diaphragms in the energy storage field has gradually expanded.
Technology iteration direction:
Coating technology promotes performance upgrades: Through the composite coating of ceramics, PVDF and other materials, the heat resistance and electrolyte wettability of the diaphragm are significantly improved, which can be adapted to ternary batteries and lithium iron phosphate batteries with higher energy density.
Accelerated R&D of solid-state batteries: Higher requirements are placed on diaphragms. Some companies have deployed electrolyte coating technology to combine diaphragms with solid electrolytes to improve the stability of the battery interface.
Automated and intelligent production: The introduction of automated production lines and intelligent detection systems has significantly improved the production efficiency and yield rate of wet-process diaphragms.
Cost competition and scale effect:
Scale effect dilutes costs: The initial investment in wet-process diaphragm production is high, but large-scale production can significantly reduce unit costs. For example, by increasing the width and speed of the production line, the single-line production capacity can reach hundreds of millions of square meters per year, further compressing depreciation and energy costs.
Process optimization reduces costs: Leading companies have achieved a cost reduction of more than 20% through process optimization, accelerating industry integration.
Policies and global layout:
Policy support: The EU's strict carbon emission standards force automakers to accelerate the transformation to electrification, indirectly pushing up the demand for wet-process diaphragms. The Chinese government has also introduced a series of supporting policies to promote the continued expansion of the new energy vehicle market, thereby driving the rapid development of the wet-process diaphragm industry.
Global layout: Chinese wet-process diaphragm companies are accelerating the expansion of overseas markets with their technological accumulation and cost advantages. Cooperation with international battery manufacturers such as Japan and South Korea, as well as the construction of localized production lines in Southeast Asia and Europe, will further increase global market share.
Environmental protection requirements promote green production:
Environmental protection policies are becoming stricter: companies are encouraged to adopt green production processes, such as reducing solvent emissions and optimizing energy recovery to meet the carbon footprint requirements of markets such as the European Union.
This information comprehensively covers the driving factors of the lithium-ion battery wet-process diaphragm market, reflecting how multiple factors such as market demand, technological progress, policy support, cost competition and environmental protection requirements jointly promote the development of the wet-process diaphragm market.
The “Lithium-Ion Battery Wet Separator Industry Forecast” looks at past sales and reviews total world Lithium-Ion Battery Wet Separator sales in 2024, providing a comprehensive analysis by region and market sector of projected Lithium-Ion Battery Wet Separator sales for 2025 through 2031. With Lithium-Ion Battery Wet Separator sales broken down by region, market sector and sub-sector, this report provides a detailed analysis in US$ millions of the world Lithium-Ion Battery Wet Separator industry.
This Insight Report provides a comprehensive analysis of the global Lithium-Ion Battery Wet Separator landscape and highlights key trends related to product segmentation, company formation, revenue, and market share, latest development, and M&A activity. This report also analyzes the strategies of leading global companies with a focus on Lithium-Ion Battery Wet Separator portfolios and capabilities, market entry strategies, market positions, and geographic footprints, to better understand these firms’ unique position in an accelerating global Lithium-Ion Battery Wet Separator market.
This Insight Report evaluates the key market trends, drivers, and affecting factors shaping the global outlook for Lithium-Ion Battery Wet Separator and breaks down the forecast by Type, by Application, geography, and market size to highlight emerging pockets of opportunity. With a transparent methodology based on hundreds of bottom-up qualitative and quantitative market inputs, this study forecast offers a highly nuanced view of the current state and future trajectory in the global Lithium-Ion Battery Wet Separator.
This report presents a comprehensive overview, market shares, and growth opportunities of Lithium-Ion Battery Wet Separator market by product type, application, key manufacturers and key regions and countries.
Segmentation by Type:
Coated Separator
Uncoated Separator
Segmentation by Application:
Power Battery
Consumer Battery
Energy Storage Battery
This report also splits the market by region:
Americas
United States
Canada
Mexico
Brazil
APAC
China
Japan
Korea
Southeast Asia
India
Australia
Europe
Germany
France
UK
Italy
Russia
Middle East & Africa
Egypt
South Africa
Israel
Turkey
GCC Countries
The below companies that are profiled have been selected based on inputs gathered from primary experts and analysing the company's coverage, product portfolio, its market penetration.
Semcorp
Putailai
Senior
Gellec
TORAY
Asahi Kasei
Sinoma Science & Technology
SK IE Technology
Cangzhou Mingzhu
ENTEK
Key Questions Addressed in this Report
What is the 10-year outlook for the global Lithium-Ion Battery Wet Separator market?
What factors are driving Lithium-Ion Battery Wet Separator market growth, globally and by region?
Which technologies are poised for the fastest growth by market and region?
How do Lithium-Ion Battery Wet Separator market opportunities vary by end market size?
How does Lithium-Ion Battery Wet Separator break out by Type, by Application?
Please Note - This is an on demand report and will be delivered in 2 business days (48 hours) post payment.
1 Scope of the Report
1.1 Market Introduction
1.2 Years Considered
1.3 Research Objectives
1.4 Market Research Methodology
1.5 Research Process and Data Source
1.6 Economic Indicators
1.7 Currency Considered
1.8 Market Estimation Caveats
2 Executive Summary
2.1 World Market Overview
2.1.1 Global Lithium-Ion Battery Wet Separator Annual Sales 2020-2031
2.1.2 World Current & Future Analysis for Lithium-Ion Battery Wet Separator by Geographic Region, 2020, 2024 & 2031
2.1.3 World Current & Future Analysis for Lithium-Ion Battery Wet Separator by Country/Region, 2020, 2024 & 2031
2.2 Lithium-Ion Battery Wet Separator Segment by Type
2.2.1 Coated Separator
2.2.2 Uncoated Separator
2.3 Lithium-Ion Battery Wet Separator Sales by Type
2.3.1 Global Lithium-Ion Battery Wet Separator Sales Market Share by Type (2020-2025)
2.3.2 Global Lithium-Ion Battery Wet Separator Revenue and Market Share by Type (2020-2025)
2.3.3 Global Lithium-Ion Battery Wet Separator Sale Price by Type (2020-2025)
2.4 Lithium-Ion Battery Wet Separator Segment by Application
2.4.1 Power Battery
2.4.2 Consumer Battery
2.4.3 Energy Storage Battery
2.5 Lithium-Ion Battery Wet Separator Sales by Application
2.5.1 Global Lithium-Ion Battery Wet Separator Sale Market Share by Application (2020-2025)
2.5.2 Global Lithium-Ion Battery Wet Separator Revenue and Market Share by Application (2020-2025)
2.5.3 Global Lithium-Ion Battery Wet Separator Sale Price by Application (2020-2025)
3 Global by Company
3.1 Global Lithium-Ion Battery Wet Separator Breakdown Data by Company
3.1.1 Global Lithium-Ion Battery Wet Separator Annual Sales by Company (2020-2025)
3.1.2 Global Lithium-Ion Battery Wet Separator Sales Market Share by Company (2020-2025)
3.2 Global Lithium-Ion Battery Wet Separator Annual Revenue by Company (2020-2025)
3.2.1 Global Lithium-Ion Battery Wet Separator Revenue by Company (2020-2025)
3.2.2 Global Lithium-Ion Battery Wet Separator Revenue Market Share by Company (2020-2025)
3.3 Global Lithium-Ion Battery Wet Separator Sale Price by Company
3.4 Key Manufacturers Lithium-Ion Battery Wet Separator Producing Area Distribution, Sales Area, Product Type
3.4.1 Key Manufacturers Lithium-Ion Battery Wet Separator Product Location Distribution
3.4.2 Players Lithium-Ion Battery Wet Separator Products Offered
3.5 Market Concentration Rate Analysis
3.5.1 Competition Landscape Analysis
3.5.2 Concentration Ratio (CR3, CR5 and CR10) & (2023-2025)
3.6 New Products and Potential Entrants
3.7 Market M&A Activity & Strategy
4 World Historic Review for Lithium-Ion Battery Wet Separator by Geographic Region
4.1 World Historic Lithium-Ion Battery Wet Separator Market Size by Geographic Region (2020-2025)
4.1.1 Global Lithium-Ion Battery Wet Separator Annual Sales by Geographic Region (2020-2025)
4.1.2 Global Lithium-Ion Battery Wet Separator Annual Revenue by Geographic Region (2020-2025)
4.2 World Historic Lithium-Ion Battery Wet Separator Market Size by Country/Region (2020-2025)
4.2.1 Global Lithium-Ion Battery Wet Separator Annual Sales by Country/Region (2020-2025)
4.2.2 Global Lithium-Ion Battery Wet Separator Annual Revenue by Country/Region (2020-2025)
4.3 Americas Lithium-Ion Battery Wet Separator Sales Growth
4.4 APAC Lithium-Ion Battery Wet Separator Sales Growth
4.5 Europe Lithium-Ion Battery Wet Separator Sales Growth
4.6 Middle East & Africa Lithium-Ion Battery Wet Separator Sales Growth
5 Americas
5.1 Americas Lithium-Ion Battery Wet Separator Sales by Country
5.1.1 Americas Lithium-Ion Battery Wet Separator Sales by Country (2020-2025)
5.1.2 Americas Lithium-Ion Battery Wet Separator Revenue by Country (2020-2025)
5.2 Americas Lithium-Ion Battery Wet Separator Sales by Type (2020-2025)
5.3 Americas Lithium-Ion Battery Wet Separator Sales by Application (2020-2025)
5.4 United States
5.5 Canada
5.6 Mexico
5.7 Brazil
6 APAC
6.1 APAC Lithium-Ion Battery Wet Separator Sales by Region
6.1.1 APAC Lithium-Ion Battery Wet Separator Sales by Region (2020-2025)
6.1.2 APAC Lithium-Ion Battery Wet Separator Revenue by Region (2020-2025)
6.2 APAC Lithium-Ion Battery Wet Separator Sales by Type (2020-2025)
6.3 APAC Lithium-Ion Battery Wet Separator Sales by Application (2020-2025)
6.4 China
6.5 Japan
6.6 South Korea
6.7 Southeast Asia
6.8 India
6.9 Australia
6.10 China Taiwan
7 Europe
7.1 Europe Lithium-Ion Battery Wet Separator by Country
7.1.1 Europe Lithium-Ion Battery Wet Separator Sales by Country (2020-2025)
7.1.2 Europe Lithium-Ion Battery Wet Separator Revenue by Country (2020-2025)
7.2 Europe Lithium-Ion Battery Wet Separator Sales by Type (2020-2025)
7.3 Europe Lithium-Ion Battery Wet Separator Sales by Application (2020-2025)
7.4 Germany
7.5 France
7.6 UK
7.7 Italy
7.8 Russia
8 Middle East & Africa
8.1 Middle East & Africa Lithium-Ion Battery Wet Separator by Country
8.1.1 Middle East & Africa Lithium-Ion Battery Wet Separator Sales by Country (2020-2025)
8.1.2 Middle East & Africa Lithium-Ion Battery Wet Separator Revenue by Country (2020-2025)
8.2 Middle East & Africa Lithium-Ion Battery Wet Separator Sales by Type (2020-2025)
8.3 Middle East & Africa Lithium-Ion Battery Wet Separator Sales by Application (2020-2025)
8.4 Egypt
8.5 South Africa
8.6 Israel
8.7 Turkey
8.8 GCC Countries
9 Market Drivers, Challenges and Trends
9.1 Market Drivers & Growth Opportunities
9.2 Market Challenges & Risks
9.3 Industry Trends
10 Manufacturing Cost Structure Analysis
10.1 Raw Material and Suppliers
10.2 Manufacturing Cost Structure Analysis of Lithium-Ion Battery Wet Separator
10.3 Manufacturing Process Analysis of Lithium-Ion Battery Wet Separator
10.4 Industry Chain Structure of Lithium-Ion Battery Wet Separator
11 Marketing, Distributors and Customer
11.1 Sales Channel
11.1.1 Direct Channels
11.1.2 Indirect Channels
11.2 Lithium-Ion Battery Wet Separator Distributors
11.3 Lithium-Ion Battery Wet Separator Customer
12 World Forecast Review for Lithium-Ion Battery Wet Separator by Geographic Region
12.1 Global Lithium-Ion Battery Wet Separator Market Size Forecast by Region
12.1.1 Global Lithium-Ion Battery Wet Separator Forecast by Region (2026-2031)
12.1.2 Global Lithium-Ion Battery Wet Separator Annual Revenue Forecast by Region (2026-2031)
12.2 Americas Forecast by Country (2026-2031)
12.3 APAC Forecast by Region (2026-2031)
12.4 Europe Forecast by Country (2026-2031)
12.5 Middle East & Africa Forecast by Country (2026-2031)
12.6 Global Lithium-Ion Battery Wet Separator Forecast by Type (2026-2031)
12.7 Global Lithium-Ion Battery Wet Separator Forecast by Application (2026-2031)
13 Key Players Analysis
13.1 Semcorp
13.1.1 Semcorp Company Information
13.1.2 Semcorp Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.1.3 Semcorp Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.1.4 Semcorp Main Business Overview
13.1.5 Semcorp Latest Developments
13.2 Putailai
13.2.1 Putailai Company Information
13.2.2 Putailai Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.2.3 Putailai Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.2.4 Putailai Main Business Overview
13.2.5 Putailai Latest Developments
13.3 Senior
13.3.1 Senior Company Information
13.3.2 Senior Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.3.3 Senior Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.3.4 Senior Main Business Overview
13.3.5 Senior Latest Developments
13.4 Gellec
13.4.1 Gellec Company Information
13.4.2 Gellec Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.4.3 Gellec Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.4.4 Gellec Main Business Overview
13.4.5 Gellec Latest Developments
13.5 TORAY
13.5.1 TORAY Company Information
13.5.2 TORAY Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.5.3 TORAY Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.5.4 TORAY Main Business Overview
13.5.5 TORAY Latest Developments
13.6 Asahi Kasei
13.6.1 Asahi Kasei Company Information
13.6.2 Asahi Kasei Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.6.3 Asahi Kasei Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.6.4 Asahi Kasei Main Business Overview
13.6.5 Asahi Kasei Latest Developments
13.7 Sinoma Science & Technology
13.7.1 Sinoma Science & Technology Company Information
13.7.2 Sinoma Science & Technology Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.7.3 Sinoma Science & Technology Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.7.4 Sinoma Science & Technology Main Business Overview
13.7.5 Sinoma Science & Technology Latest Developments
13.8 SK IE Technology
13.8.1 SK IE Technology Company Information
13.8.2 SK IE Technology Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.8.3 SK IE Technology Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.8.4 SK IE Technology Main Business Overview
13.8.5 SK IE Technology Latest Developments
13.9 Cangzhou Mingzhu
13.9.1 Cangzhou Mingzhu Company Information
13.9.2 Cangzhou Mingzhu Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.9.3 Cangzhou Mingzhu Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.9.4 Cangzhou Mingzhu Main Business Overview
13.9.5 Cangzhou Mingzhu Latest Developments
13.10 ENTEK
13.10.1 ENTEK Company Information
13.10.2 ENTEK Lithium-Ion Battery Wet Separator Product Portfolios and Specifications
13.10.3 ENTEK Lithium-Ion Battery Wet Separator Sales, Revenue, Price and Gross Margin (2020-2025)
13.10.4 ENTEK Main Business Overview
13.10.5 ENTEK Latest Developments
14 Research Findings and Conclusion
*If Applicable.
