Batteries

Superior battery characteristics at lower production and recycling costs.

Dow offers tailor-made solutions for the sustainable manufacture of battery electrodes by using water-soluble binders based on renewable raw materials. This alternative to conventional systems follows a new approach to battery production, and achieves comparable to superior battery characteristics as well as lower production and recycling costs.

Our Solutions

Dow's water-soluble polymers, mainly WALOCEL™ CRT Sodium Carboxymethylcellulose are broadly used as binders in lithium ion battery electrodes.  Additionally, POLYOX™ water-soluble polymers are used as binders for battery electrodes and in membrane separators.

POLYOX™

POLYOX™

Benefits/Property
Complex formation with lithium salts and many other polar substances

Applications
Binders for battery electrodes and in membrane separators; Additive for polymer electrolytes

WALOCEL™ CRT

WALOCEL™ CRT

Benefits/Property
Optimal dispersion of the active material & conductive additive; Mechanical integrity during battery manufacturing & cycling; Adhesion to current collector

Applications
Binder and rheology modifier for the preparation of lithium ion battery electrodes

Your Applications

WALOCEL™ CRT

The outstanding water-solubility and the adjustable rheological profile of highly purified WALOCEL™ CRT grades provide battery producers with many advantages:

  • Water based solvent – environmental friendly, clean, no pollution
  • No need of environmental control in the electrode slurry preparation
  • Fast drying speed & low drying temperature requires less electric power and yields in higher production rate
  • Reduced manufacturing cost of the aqueous vs. the solvent processing
  • No dry room required for cell assembly, only humidity control required during electrolyte filling
 

POLYOX™

POLYOX™ forms complexes with a wide variety of lithium salts such as lithium triflate, and with many polar substances like mineral acids, halogens, and poly (carboxylic) acids, opening the door for new battery designs. In electrolytes, POLYOX™ can dissolve a large amount of the inorganic salts resulting in an ion-conductive medium for rechargeable batteries. Furthermore, the polymer electrolyte can be made into strong and flexible thin films to improve battery safety, performance and manufacturing.

POWERED BY ChemPoint Logo white

Dow and ChemPoint formed a strategic partnership in April 2014 to establish a new order, delivery and service model, specifically designed to meet customer needs in industrial applications, for CELLOSIZE™ hydroxyethyl cellulose polymers, ETHOCEL™ ethylcellulose polymers, METHOCEL™ cellulose ethers, POLYOX™ water-soluble polymers, and WALOCEL™ CRT products. Our collective goal is to enhance the customer experience by providing a higher degree of service and support powered by a dedicated technical marketing & sales team focused exclusively on Dow’s cellulosic and poly(ethylene oxide) offerings in industrial applications. 

The industrial cellulosics team at ChemPoint acts as a fully-integrated extension of Dow and is always available to facilitate customer needs for product selection, technical support, order placement and fulfillment. In addition, our customers receive needed support from ChemPoint’s customer service and supply chain professionals to ensure on-time delivery and high service levels.