Business/Products
TOYOCOLOR CO., LTD.
Toyocolor Receives Toyota Battery’s Zero Defects Award
Achieves 10 consecutive years of high quality control results in auto battery fabrication
This page has been translated using AI.
artience group 's TOYOCOLOR CO., LTD. (Hideki Okaichi, Chuo-ku, President and Representative Director, Tokyo) received the "Zero Quality Defects Award for 10 Consecutive Years" at the "Appreciation Meeting" hosted by Toyota Battery Corporation.
Since its first adoption in 2015, TOYOCOLOR has been supplying acetylene black dispersions as a conductive additive for lithium-ion batteries, and has been supplying carbon nanotube (CNT) dispersions since September 2023. If foreign matter is mixed into a lithium-ion battery, a short circuit will occur, which may cause performance degradation, heat generation, and fire. For this reason, high-power batteries with CNT dispersions require even stricter quality control against metallic contaminants.
Based on the three principles of foreign matter management, "do not bring it in," "do not generate it," and "remove it," TOYOCOLOR has been striving to thoroughly manage foreign matter in the series of processes from receiving raw materials to manufacturing, filling, and shipping. This award was given in recognition of the fact that we have achieved zero quality defects for 10 consecutive years by taking measures against foreign substances from both the raw material and the process.
TOYOCOLOR will further improve the performance of lithium-ion batteries by developing conductive CNTs dispersions, which are key materials for lithium-ion batteries, and conducting thorough quality control, thereby contributing to the realization of a sustainable society through the spread of clean mobility.
About Toyota Battery Corporation
Toyota Battery Corporation is a 100% subsidiary of Toyota Motor Corporation and is an automotive battery manufacturer. Through batteries, which are the core components of electrified vehicles, we are working to create the cars of the future. For more information about Toyota Battery Corporation, please visit the following website.
https://www.toyota-battery.com/jp/
Inquiries
TOYOCOLOR CO., LTD.
Functional Materials Sales Department
Person in charge: Usui
TEL: +81-3-3272-0956
Press inquiries
artience Co., Ltd.
Corporate Communication Department
TEL: +81-3-3272-5720
MAIL: info@artiencegroup.com
May 28, 2025, Tokyo, Japan—Toyocolor Co., Ltd., the colorants and functional materials division of the artience Group, received the “Award for 10 Consecutive Years of Zero Quality Defects” from Toyota Battery Co., Ltd., a wholly-owned subsidiary of Toyota Motor Corporation. The recognition underscores Toyocolor’s ability to prevent the introduction of harmful foreign matter in automotive battery materials, from both the raw materials selection stage on through to processing. Representatives of Toyocolor accepted the award at a supplier meeting hosted by Toyota Battery on April 22, 2025, in Japan.
Since 2015, Toyocolor had been supplying Toyota Battery with acetylene black dispersions as a conductive additive in lithium-ion batteries (LiBs). Subsequently, in September 2023, this supply was replaced by new carbon nanotube (CNT) dispersions developed by Toyocolor. Foreign matter contamination during LiB fabrication can lead to short circuits. This in turn results in reduced battery performance and increased heat generation, potentially triggering ignition. Thus, high-output batteries that adopt CNT dispersions require even more rigorous quality controls against metal impurities.
“We are delighted to be recognized for manufacturing excellence by a world-class battery maker like Toyota Battery,” said Masaki Nagatsubo, Managing Director of Toyocolor. “At Toyocolor, we uphold three principles for contamination control - Zero Tolerance, Zero Occurrence and Zero Defect. We believe it is this mindset of striving for perfection that has allowed us to maintain a high level of foreign matter control. It starts with the quality control of raw materials and extends through all stages of processing, and filling and shipping.”
Building on this accolade, Toyocolor will continuously work to make further performance enhancements to its conductive CNT dispersions and their quality controls, with the aim of realizing a sustainable society through the spread of clean mobility.
About Toyota Battery
Toyota Battery Co., Ltd. is an automotive battery manufacturer that is a wholly owned subsidiary of Toyota Motor Corporation. Toyota Battery aims to become the “Battery Company for the Future of Mobility” by taking on flexible and agile challenges. For more information, see https://www.toyota-battery.com/en/.
About Toyocolor
Toyocolor Co., Ltd. oversees the Colorants and Functional Materials business of the global chemical manufacturer artience Co., Ltd. With its strength in colorant design technology and dispersion technology, Toyocolor develops functional materials in various fields, including organic pigments, colorants for plastics, and functional dispersions such as conductive carbon nanotube dispersions for lithium-ion battery cathodes. For more information, see www. artience group.com/en/group/toyocolor/.
For information on the parent company artience Co., Ltd. (formerly Toyo Ink SC Holdings Co., Ltd.), see www. artience group.com/en/.
Inquiries
artience Co., Ltd. (Tokyo, Japan)
Corporate Communication Department
info@artiencegroup.com
Share
