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New Energy | Three-in-One Filtration System to Break Through Filtration Bottlenecks in Ternary Precursor Production

Views: 159 Author: LOONG FILTRATION Publish Time: 2025-09-22 Origin: Site

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LOONG & LEADING STATE-OWNED ENTERPRISE

In the new energy lithium battery industry chain, ternary precursors serve as the core raw material for cathode materials. Their purity and impurity control directly determine the performance of cathode materials, which in turn affects the energy density and cycle life of lithium batteries. A leading domestic new energy material enterprise with state-owned background, specializing in the R&D and production of ternary precursors, boasts an annual production capacity of over 70,000 tons, ranking among the top 5 in the domestic industry. As a core supplier to multiple leading cathode material manufacturers, the enterprise was confronted with pain points of low efficiency and high cost in its filtration system during production. Leveraging its innovative filtration solutions, LOONG FILTRATION helped the enterprise achieve dual upgrades in production efficiency and economic benefits.

I. Customer Background and Core Filtration Challenges

As a benchmark enterprise in China's ternary precursor sector, the customer plays a key role in the core link of the new energy lithium battery industry chain and adheres to strict product quality standards. However, in the solid-liquid separation process of ternary precursor production, the original filtration configuration of "PP needle-punched felt filter bag + PP pleated filter element" gradually exposed two core bottlenecks, seriously affecting production continuity and cost control

Challenges Customer Facing

• Short service life of terminal filter elements: Insufficient precision of pre-filtration leads to premature clogging of the downstream PP pleated filter elements, requiring frequent replacement.

• Difficulties in solid impurity recovery: The traditional process of filter bag replacement and solid residue cleaning is cumbersome and relies heavily on manual labor, increasing operational and disposal costs.

II. LOONG FILTRATION's Customized Filtration Solution: Three-in-One High-Efficiency Filtration System

Solutions

Targeting the customer's production pain points, LOONG FILTRATION, considering the material characteristics (high viscosity, high content of fine particle impurities) and production process requirements of ternary precursors, innovatively launched a three-in-one filtration system integrating "precise pre-filtration + automatic residue control + precise terminal filtration". The system was promoted and applied in all the customer's production lines in 2024:

• SPFE Series Electronic-Grade PE Powder Sintered Filter Elements: As the core of pre-filtration, they can achieve a maximum filtration precision of 0.3μm, far higher than that of PP needle-punched felt filter bags.

• DLY Series Automatic Candle-Type Backwash Filters: Realize full automation of the entire process including filtration, backwashing, and residue discharge.

• FEP Series Electronic-Grade PP Pleated Filter Elements: Serve as terminal precise filtration to ensure high cleanliness of the final product.

III. Implementation Results: Triple Breakthroughs in Efficiency, Cost, and Quality

Excellent Features

• Significantly extended filter element service life: The high-precision pre-filtration PE sintered filter elements effectively protect the terminal FEP filter elements, extending their service life several times.

• Realized efficient automatic residue discharge: The DLY backwash filter automatically completes solid residue recovery, greatly reducing manual intervention and disposal costs.

• Reduced comprehensive costs: The extended filter element replacement cycle and reduced labor costs have brought significant economic benefits to the customer.

IV. Introduction to Core Products

SPFE Series PE Powder Sintered Filter Elements

High-precision protection: Absolute precision of 0.3μm, effectively intercepting most particles and providing strong protection for downstream filter elements.
Reusable: Regenerated through backwashing, significantly reducing consumable costs.

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DLY Series Automatic Candle-Type Backwash Filters

Full-process automation: Integrated with PLC control, realizing unmanned operation of filtration, backwashing, and residue discharge, improving production efficiency and safety.
Rapid residue discharge: Unique structural design ensures rapid and thorough discharge of solid residues from the system.

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FEP Series PP Pleated Filter Elements

Intelligent gradient filtration: Multi-layer gradient membrane structure enables precise graded interception of particles with different particle sizes, featuring high dirt-holding capacity and a service life far longer than that of ordinary single-layer filter elements.

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V. Reviews from Customer

"LOONG FILTRATION's combined solution has fundamentally solved our solid residue recovery problem and unexpectedly extended the service life of filter elements significantly. Its high degree of automation has saved us a lot of labor costs. LOONG FILTRATION is truly a filtration expert who understands the production process."

LOONG FILTRATION has always focused on providing innovative filtration solutions for high-end manufacturing fields such as new energy, electronic chemicals, and semiconductors. Relying on solid technical accumulation and a strict quality system, we have become a long-term technical partner of many industry-leading enterprises, providing customers with full-value chain services from material R&D to on-site application.

VI. About LOONG FILTRATION

LOONG Filtration specializes in high-performance filtration solutions for advanced industries including New Energy & Lithium Batteries，Electronic Chemicals，Semiconductor Manufacturing

With strong technical expertise and a rigorous quality system, we support industry leaders with end-to-end services – from material development to on-site application engineering.

Facing Similar Filtration Challenges in Your Battery Production Line?

Contact LOONG Filtration today for a customized solution proposal.

EMAIL: sales@l oongfiltration.com