PRESS INFORMATION

Corporate
TDK successfully developed a material for solid-statebatteries with 100-times higher energy density
June 17, 2024
TDK Corporation (TSE:6762) successfully developed a material for CeraCharge, a next-generation solid-statebattery with an energy density of 1,000 Wh/L, approximately 100 times greater than the energy density of TDK’sconventional solid-state battery.
TDK’s technology is aimed at a solution that can be utilized in various wearable devices, such as wirelessearphones, hearing aids and even smartwatches, with the goal of replacing existing coin cell batteries.
Utilizing TDK’s proprietary material technology, TDK has managed to develop a material for the new solid-statebattery with a significantly higher energy density than TDK’s conventional mass-produced solid-state batteries(Type: CeraCharge) due to the use of oxide-based solid electrolyte and lithium alloy anodes. The use of oxidebased solid electrolyte makes batteries extremely safe. It is intended for use in wearable and other devices thatcome in direct contact with the human body.
The battery can be applied for replacing coin cell primary batteries in compliance with EU battery regulations,which require them to be replaced by rechargeable batteries, which is expected to contribute to the reduction ofenvironmental impact.
TDK will strive to develop the battery cells and package structure design and advance toward mass production,
targeting the development of its new product, the solid-state battery. Moreover, TDK aims to enhance the capacityof the batteries through multi-layer lamination technology and expand its operating temperature range by applying
the production engineering technology TDK has accumulated in the electronic components business.
----Main applications
 Various wearable devices such as wireless earphones, hearing aids and smartwatches Environmental sensors
 Replacement of coin cell batteries
Main features and benefits The use of oxide-based solid electrolyte makes battery extremely safe Smaller size and higher capacitance contribute to smaller device size and longer operating time

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About TDK Corporation
TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on afoundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at theforefront of technological evolution and deliberately “Attracting Tomorrow.” It was established in 1935 tocommercialize ferrite, a key material in electronic and magnetic products. TDK’s comprehensive, innovationdriven portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as wellas magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors andsensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides
power supplies and energy devices, magnetic heads and more. These products are marketed under the productbrands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in
automotive, industrial and consumer electronics, and information and communication technology. The company
has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and SouthAmerica. In fiscal 2024, TDK posted total sales of USD 14.6 billion and employed about 101,000 people
worldwide.
----Further information on existing CeraCharge products can be found underhttps://www.tdk.com/en/featured_stories/entry_024.html
You can download this text and associated images fromhttps://www.tdk.com/en/news_center/press/20240617_01.html----Contacts for media
RegionJapan

ContactMr. Tomohiro
KANNO© TDK Corporation · Press Information

TDK Corporation
Tokyo, Japan

Phone

Mail+813 6778-1055

TDK.PR@tdk.com2