The latest developments and technological advancements in the field of PVDF films, combined with industry focus and innovative breakthroughs:

Capacity expansion and industrial chain layout

Dongyue Group's new 10000 ton project is put into operation

Shandong Dongyue Group has officially put into operation an additional 10000 tons of PVDF production capacity, forming an annual production scale of 25000 tons in coordination with the existing production line, covering all fields such as lithium batteries, photovoltaics, and construction, becoming a core supplier for CATL and BYD.

Jinchuan Group Enters PVDF Market

Plan to construct a 10000 ton PVDF project (including 12600 ton R152a and 11000 ton VDF units), with trial production starting at the end of June 2025, targeting the high-end lithium and photovoltaic markets.

Technological breakthroughs and application innovation

Electronic skin flexible sensor

Shengjingwei has successfully developed PVDF flexible film, which has become the core material for electronic skin tactile perception and is suitable for medical robots and wearable devices due to its high sensitivity piezoelectric response and biocompatibility.

Building protective film weather resistant upgrade

Gaozheng New Materials has launched PVDF outdoor building special film with a fluorine content of over 60%. After 12000 hours of xenon lamp aging test, the solar light reflection retention rate is 82%, and the service life can reach 25 years.

Innovation of Power Battery Diaphragm Technology

The competition between dry/wet membrane technology has intensified, and PVDF modified membranes have helped Kirin batteries break through the energy density of 720Wh/L, promoting the research and development of 400Wh/kg high-energy density batteries.

Intellectual Property and Market Competition

Solvay wins patent lawsuit

Guangzhou Intellectual Property Court ruled that Zhejiang Funolin infringed on Solvay's PVDF patent for lithium battery adhesive and banned its production and sale of infringing product Zheflon ®  FL2100.

Local substitution acceleration

The fourth generation suspension polymerization technology of Lianchuang Group has broken through the 99.999% purity barrier, reduced electrode interface impedance by 42%, and accelerated the penetration of domestic PVDF in the high-end lithium battery field.

Industry Challenges and R&D Frontiers

Exploration of Solid State Battery Materials

The PVDF membrane material jointly developed by Yuma Technology and Wuhan Zhongke has not yet been applied to solid-state batteries, with a focus on improving weather resistance and stability.

Price fluctuations and overcapacity

In March 2025, the price of PVDF was 57000 yuan/ton, a year-on-year decrease of 3.39%. The slowdown in demand growth for lithium batteries and the release of new production capacity led to a rebalancing of supply and demand.

Breakthrough in Porous Membrane Preparation Technology

Memtec in the United States has developed a new process for high porosity PVDF membranes and expanded the application of hydrophilic polymer blending technology in water treatment and biomedical fields.