Today, the power heart of new energy vehicles running on the road mostly comes from the internal lithium-ion power battery. Whether it is the mainstream lithium iron phosphate battery or the ternary lithium battery pursuing higher energy density, their production is inseparable from a key process - the preparation and transfer of battery slurry.

With the accelerated global energy transition, the market demand for lithium batteries is growing exponentially, and the production technology is becoming increasingly refined. In particular, new lithium salts such as lithium bis(fluorosulfonyl)imide are gradually becoming the core materials of high-energy-density batteries due to their excellent thermal stability and high electrical conductivity.

However, the slurry prepared from it often has extreme characteristics such as high temperature, high abrasion, strong corrosion and high solid content, posing an unprecedented test for transfer equipment.

(Bonve Pump Industry Camshaft Double Rotary Pump)

In the past, many battery manufacturers tried various types of pumps, but the results were always unsatisfactory. Some suffered from large pulsation and harsh noise during operation, affecting the workshop environment and coating uniformity; others had core components wearing out too quickly, and frequent shutdowns for maintenance lowered production line efficiency.

Unstable flow output is even a fatal flaw, directly affecting the consistency of battery cells. Faced with media such as lithium bis(fluorosulfonyl)imide slurry, traditional pump technology appears inadequate.

In recent years, battery manufacturers with a broad technical vision have begun to turn their attention to rotary pumps. After small-batch trial applications, the advantages of this positive displacement pump have quickly become prominent.

Its stable low-speed operation fundamentally eliminates transfer pulsation, providing a steady material flow for subsequent processes. Even more favored by engineers is its excellent online maintenance capability - vulnerable parts can be quickly inspected or replaced without disassembling pipelines, greatly shortening downtime.

Take Bonve rotary pumps as an example; their technical characteristics precisely meet the stringent requirements of new energy material transfer.

This series of pumps offers a wide flow range from 0 to 400 m³/h, covering all links from pilot lines to mass production lines.

In response to the corrosiveness of lithium bis(fluorosulfonyl)imide slurry, the rotors can be made of SS304 stainless steel or even higher-grade duplex stainless steel, ensuring long-term reliable operation.

The pump body adopts an integral casting process, equipped with replaceable wear-resistant liners internally. This "sacrificial part" design greatly extends the service life of the main pump body.

Its independent intermediate isolation chamber design can not only effectively lubricate and cool the mechanical seal, but also support online flushing, preventing seal failure caused by material crystallization.

For slurry that needs to maintain specific rheological properties, the jacket insulation device realizes constant-temperature transfer of materials, ensuring process stability.

It can be said that from a "headache problem" to a "trusted standard configuration", rotary pumps, relying on their unique structural principles and evolving material science, are showing irreplaceable value in the highly demanding station of lithium bis(fluorosulfonyl)imide slurry transfer.

It solves not only the transfer problem, but also provides a solid guarantee for the stable manufacturing of the next generation of high-energy-density lithium batteries.

Bonve pump always adheres to the philosophy of "Wholeheartedly Making Good Rotor Pumps," committed to providing global customers with customized conveying and mixing solutions. If you have technical inquiries, selection needs, case references, or other cooperation intentions related to Bonve rotor pumps, please feel free to contact us.  

Service Hotline: 0574-87588986 13586591794  

Official Website: www.bvpumps.com  

Business Email: market@bonvepumps.com  

We look forward to working with you to drive efficiency and innovation in industrial fluid transmission with precision technology.