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LIOACCUM™ — High-performance Dispersions for Batteries

Product Overview

Leveraging its original dispersion expertise accumulated over the years, the Toyo Ink Group is committed to resolving energy issues by making advances in lithium-ion battery properties, quality reliability, processing cost efficiency and helping to drive the use of battery energy storage systems.

LIOACCUM™ ONESHOT WANISU™ for Lithium-ion Battery Electrodes

The LIOACCUM ONESHOT WANISU, based on Toyocolor’s expertise in dispersion and ink processing technology, is a high performance, liquid-type dispersion used for processing lithium-ion battery electrodes. A lithium battery electrode is a composite formed by simply dispersing and mixing an electrode active material and ONESHOT WANISU into the desired concentration.
Compared with conventional manufacturing methods, ONESHOT WANISU dispersions make it possible to produce a high-grade and stable battery electrode by forming a homogenous coating on the electrode surface with reduced coagulation of carbon particles. In addition, a highly concentrated slurry can be achieved by simply mixing the ONESHOT WANISU dispersion — which is already in liquid form — with the active materials, thus significantly reducing the slurry production time and the curing time required for the electrode coating process.
In addition to the dispersion’s superior physical properties, ONESHOT WANISU dispersions have been highly evaluated and adopted by multiple battery manufacturers for not only its superior physical properties but also its battery processing cost-saving benefits.

Excellent Dispersion Properties with Reduced Carbon Coagulation

The dispersion of carbon particles, which are conductive auxiliary agents, into the optimal concentration enables the formation of an efficient conductive path between a battery’s anode and cathode, thereby improving electrode performance, such as output.
In addition, ONESHOT WANISU’s advanced design enables it to uniformly disperse carbon nanoparticles, thus minimizing disparities between production lots and in electrode coating films. This results in the production of highly stable and homogeneous electrode coating films.

Significant Reduction in Slurry Dispersing and Processing Time

ONESHOT WANISU is a carbon dispersion in which a polyvinylidene flouride (PVdF) binder has been uniformly dissolved. As a result of this, battery manufacturers do not need to purchase a PVdF varnish or dissolve PVdF for electrode processing. In addition, since the dispersion or processing of carbon nanoparticles is no longer necessary, a slurry composition can be formed by simply mixing the ONESHOT WANISU dispersion with the active materials, resulting in significantly reduced production time.

Highly Concentrated Slurry Composition

A concentrated slurry composition is achieved through the uniform dispersion of carbon that enables the formation of a low-viscosity slurry. This contributes to a significant decrease in N-Methylpyrrolidone (NMP) solvent use and reduced electrode production and curing times.

Highly Stable Electrode Performance

The uniform dispersion of carbon also contributes to enhancing electrode peel strength by inhibiting varying homogeneity of PVdF distribution in electrode coating films. Moreover, in the dispersion of carbon materials, ONESHOT WANISU makes use of dispersing agents that do not negatively impact battery performance.

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Update: Dec. 10, 2015