Electrical & Electronics

Batteries for electronic devices

Electrolytic manganese dioxide (EMD)

EMD is used in the production of dry cells and soft ferrites. Tosoh EMD, produced in Japan and Greece, meets the most demanding requirements of electronics manufacturers throughout the world. Tosoh has the largest battery-grade EMD capacity in the world.

Rechargeable lithium-ion batteries

Electrolytic manganese dioxide (EMD)

Rechargeable lithium-ion batteries are expected to become mainstream in electric, hybrid, plug-in hybrid, and other eco-vehicles. The lithium manganese oxide (LMO) used for their cathodes demonstrates superb safety because of its stable chemical structure. EMD is one of the raw materials used in producing LMO.

Electronic parts and tools

Yttria-stabilized zirconia powders

Tosoh is the world’s largest supplier of yttria-stabilized powders that go into high quality products. Zirconia's superior mechanical properties, high fracture strength and resistance to abrasion make it essential for robust machine parts, electronic parts and tools, and optical fiber connectors.

High-performance polymer for automotive electronics

Polyphenylene sulfide (PPS)

Tosoh polyphenylene sulfide (PPS) is uniquely engineered to combine many of the best properties of plastics and metals, and has therefore found automotive applications in the fabrication of lighting components, emission control components, and fuel system parts.



Tosoh supplies electrical and electronics manufacturers with essential materials for robust machine parts, reliable optical fiber connectors, and components of advanced materials combining the best properties of plastics and metals.