TDK Corporation has successfully developed a material for CeraCharge, a next-generation solid-state battery with an energy density of 1,000Wh/L. Particularly, the new material is approximately 100 times greater than the energy density of TDK’s conventional solid-state battery.

The new technology from TDK technology aims at a solution for use in various wearable devices. Among them include wireless earphones, hearing aids, smartwatches and environmental sensors. Primarily, it aims to replace existing coin cell batteries.

Used Oxide-Based Solid Electrolyte, Lithium Ion

Utilizing TDK’s proprietary material technology, the company has managed to develop a material for the new solid-state battery with a significantly higher energy density than its conventional mass-produced solid-state batteries (Type: CeraCharge).

Specifically, the company used oxide-based solid electrolyte and lithium alloy anodes to achieve the enhanced energy density. As a result, the use of oxide-based solid electrolyte makes batteries extremely safe. Also, smaller size and higher capacitance contribute to smaller device size and longer operating time.

Generally, it is intended for use in wearable and other devices that come in direct contact with the human body.

Additionally, 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. Accordingly, it is expected to contribute to the reduction of environmental 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 capacity of 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.

-18 June 2024-