While promising to revolutionize energy storage, all-solid-state battery technology has been facing massive challenges in large-scale mass production. Now, a new battery material breakthrough at TDK could pave the way for the widespread adoption of solid-state technology.
TDK has developed a new material for solid-state batteries with a significantly higher energy density than conventional mass-produced solid-state batteries. This material boasts an energy density of 1,000 Wh/L, approximately 100 times greater than the energy density of TDK’s conventional solid-state battery.
Source: TDK
TDK’s new solid-state battery, developed with all-ceramic materials, aims to replace coin cell batteries in small portable devices such as smartwatches, wearables, and wireless earphones. The solid-state battery built around multi-layer ceramic chip capacitors offers high energy density, miniaturization, and greater safety without a risk of electrolyte leakage.
The all-ceramic material, including an oxide-based solid electrolyte and a lithium alloy negative anode, enables smaller battery sizes and longer operating times. The oxide-based solid-state electrolyte eliminates the safety risks associated with flammable electrolytes, which is a vital consideration in wearable and other devices that come in direct contact with the human body.
What TDK is doing here is enhance the capacity of the batteries through multi-layer lamination technology and expand its operating temperature range by applying the production engineering technology that the Japanese company has accumulated in the electronic components business.
As a result, TDK 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, CeraCharge. The battery’s intricate layered structure and charge storage mechanism show astute phase transitions within its active materials.
Compared to traditional liquid electrolyte batteries, all-solid-state batteries are safer, lighter, and offer longer life and faster charging. They could also be potentially cheaper in the future, paving the way for their use in smartphones and even electric vehicles.
However, using ceramic material in these solid-state batteries means that larger batteries could be more fragile. That, in turn, will lead to insufficient performance, poor durability, and safety issues. Still, TDK’s design breakthrough represents an important step in the commercial realization of solid-state batteries.
For now, TDK is moving ahead to develop the battery cells and package structure design and then advance toward mass production of solid-state batteries that will replace existing coin-shaped batteries found in wearables and other small portable devices. Meanwhile, we’ll keep an eye on the development of larger solid-state batteries for smartphones and electric vehicles.
Related Content
Solid-State Batteries Bid to Replace Li-Ion in EVs
Imec Doubles Energy Density of its Solid-State Batteries
Unveiling Trends and Insights in Solid-State Battery Technology
Energy Harvesting for Ultra-Low Power Wearable Medical Devices
Powering wearables: battery types, current challenges, and energy harvesting
<!–
VIDEO AD
–>
<!–
div-gpt-ad-inread
–>
googletag.cmd.push(function() { googletag.display(‘div-gpt-ad-inread’); });
googletag.cmd.push(function() { googletag.display(‘div-gpt-ad-native’); });
–>
The post The advent of all-solid-state battery for wearables appeared first on EDN.
Source link
