Top 5 anode binder companies in China

1. The introduction and importance of anode binder

Lithium ion battery anode materials include active substances, conductive agents, anode binder, thickeners, and solvents. As an important part of the lithium ion battery electrode, the main function of the anode binder is to ensure that the active material particles.

And the current collector have a certain bonding strength during the use of the battery, and that it is conducive to the formation of SEI. In addition to the adhesion properties of anode binder, lithium-ion battery anode binder materials also need to be able to withstand swelling and corrosion of electrolytes.

And withstand electrochemical corrosion during charging and discharging processes, and remain stable within the operating voltage range of the electrode. Therefore, there are not many polymer materials that can be used as anode binder for lithium-ion batteries, and their basic requirements in the top 10 lithium ion battery anode material companies are:

• The anode binder has a dispersing effect on anode active materials and conductive agents.
• It has a thickening and anti-settling effect on the anode slurry.
• Stabilizes electrode processability and helps improve battery cycle performance.
• Improve the peel strength of the electrode.

Common anode binder for lithium ion batteries mainly include polyvinyl alcohol (PVA), polytetrafluoroethylene (PTFE), polyolefins (PP, PE, and other copolymers), polyvinylidene fluoride (PVDF); modified SBR rubber, fluorinated rubber, polyurethane, etc. Next, we will sort out well-known top 5 anode binder companies in China.

2. Top 5 anode binder companies in China

① Lihong Fine Chemicals

Lihong Fine Chemicals is a Hi-Tech company specialized in researching, manufacturing, selling and service of anode binder like sodium carboxymethyl cellulose (CMC) and polyanionic cellulose(PAC). The annual production capacity is 63,000MT. The company reached the international highest level on process layout, equipments selection, public system and supporting facilities.

The company has established business relations with several hundreds of companies. Sodium carboxymethylcellulose (CMC) and lithium carboxymethylcellulose (CMC-Li) are widely used in the battery industry as cathodic and anode binders, gels for cathodic protection, silicon-based electrodes, and graphite modifications. At present, the products have been supplied in bulk to the world's major companies of power batteries, consumer batteries, and energy storage batteries.

In 2019, after the listing of carboxymethylcellulose lithium, it successfully entered the field of lithium batteries for electric vehicles. The company's products are used in batteries, coatings, building materials, and other industrial fields.

② Blue Ocean and Black Stone Technology

Blue Ocean and Black Stone is China's leading technology transformation and application platform for new chemical materials. The company is mainly engaged in the research and development, production and sales of new lithium battery materials.

The main products are water-based adhesive materials, release materials, special functional materials, etc. There are also PAA binders for waterborne cathodes for lithium-ion batteries anode binder, waterborne PAA adhesives for silicon and graphite anodes, and PAAs for high-performance separator coatings.

At Battery Expo 2023, Blue Ocean and Black Stone will work with upstream and downstream partners to provide practical bonding technology solutions for advanced battery manufacturing and super battery plants.

③ Puyang Blue Star

Puyang Blue Star has an annual output of 50,000 tons of butadiene extraction devices and an annual output of 100,000 tons of latex devices. The company's butadiene plant uses BASF technology, which is a world-class process in terms of safety, environmental protection, and energy saving. The device is advanced in China and the production process is industry-leading.

At present, more than 10 kinds of carboxyl nitrile and styrene-butadiene latex series have been developed, which can be widely used in architectural coatings, carpets, tires, lifepo4 batteries and other industries. The anode adhesive produced by the company has good mechanical stability and operability, super alkali resistance, excellent softness, good air permeability and strong adhesion after film formation.

In 2023, China's synthetic latex market will continue its trough operation period, and the risk of company market operation will continue to escalate. On the one hand, the industry's new production capacity is still releasing increments, and although the market demand side has improved, there is still great uncertainty.

On the other hand, raw material prices fluctuate frequently. As one of the top 5 anode binder companies in China, this company has introduced and absorbed the most advanced science and technology and management concepts, building a platform integrating R&D and providing the most meticulous technical services.

④ Crystal Clear Electronic

Crystal Clear Electronic is a technology-based new materials company integrating R&D, production and sales, providing key materials and technical services for emerging scientific and technological fields.

The company's main products include functional materials, lithium battery materials, etc., which are widely used in semiconductors, panel displays, LEDs and other pan-semiconductor fields, as well as lithium batteries, solar photovoltaic and other new energy industries.

The main products of lithium battery materials include lithium battery binders such as CMC, NMP (N-methylpyrrolidone), electrolytes, etc. The anode adhesive produced by the company has the advantages of small dosage, low internal limit, low temperature resistance, excellent performance, excellent cycle and manufacturing, etc., and is especially suitable for the manufacture of large-scale hybrid lithium batteries.

It is expected that in the next five years, performance flexibility will be fully released. In terms of anode material binder, it is suitable for the manufacture of large-scale hybrid lithium batteries, and its main customers include top 10 lithum battery companies in the world such as BYD, CATL, etc..

⑤ Yindile Material Technology

Yindile Material Technology is a high-tech company specializing in research and development, production and sales of waterborne adhesives for lithium-ion batteries. The company has established a unique structure theory and special adhesive preparation technology for lithium ion batteries after years of dedication and hard work, and has a number of international and domestic invention patents.

The company's water-based adhesive for lithium-ion batteries can reduce the amount of adhesive by 40%, improve the softness of the electrode, and the swelling degree is much lower than that of traditional anode binder. The LA132 and LA133, have become leading brands in the industry. Their features include:

• Significantly reduce the internal DC resistance (DCR) of the battery.
• Improve the battery's low temperature and high current discharge performance.
• Extend battery battery life cycle(including 0°C cycling).
• Electrolyte resistant, small swelling of the pole piece.
• Good stability, high shear resistance, and freeze-thaw resistance.
• High-speed roller pressing with a non-stick roller to improve the processing performance of pole pieces.

In 2018, the growth of the power battery and energy storage markets drove the growth of lithium battery anode binder market demand, of which the company's water-based binder accounted for a major share in the power battery market. And it make this company as the top 5 anode binder companies in China.

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