TOYO Awarded Key Solid-State Battery Technology Patent in China
Innovative Probe Technology with High-Frequency Impedance Measurement System Supports and Advances Research and Development of Solid-State Batteries
Tokyo, Japan, June 24, 2021 – TOYO Corporation is pleased to announce that the company was awarded a key patent in China in April 2021 for probe technology installed in the solid-state battery electrolyte evaluation solution “High-Frequency Impedance Measurement System.” The Chinese patent number assigned is CN 111226120 B and named “Explorer.” This patent demonstrates our commitment to contribute and advance the development of high-frequency impedance measurement systems in China and to take advantage of the favorable market trends for the use of this technology. TOYO has already secured a similar patent (No. 6324648) for the technology called “Probe” in Japan in April 2018.
Currently, environmental efforts are being made globally to realize a carbon-neutral (“decarbonized”) world. The introduction of electric vehicles (EV) is but one more step society is taking to reducing greenhouse gas emissions that cause global warming. However, with the introduction of EVs, issues such as the energy capacity, safety, and length of charging time of the onboard storage batteries have been raised. Solid-state batteries are believed to be key technologies that ameliorate these challenges and are being heavily researched for deployment throughout the world. Japan is one of the first countries to embark on this research, but China also has poured resources into this area. Market trends predict by 2035, EVs will account for 50% of all new vehicle sales in China.
The “High-Frequency Impedance Measurement System” is a device that evaluates the performance of solid electrolytes, which are components of all-solid-state batteries. To characterize the ionic conductivity of a solid electrolyte, the reaction resistance of the solid electrolyte in the grains, grain boundaries, and electrode interface must be accurately evaluated and measured. To accomplish this, it is necessary to apply a high frequency and to change the temperature environment of the sample for measurement. TOYO has developed a unique probe structure to measure impedance at a high frequency of 100MHz. Further, we have achieved control over a wide temperature range, from -183°C to 200°C.
This technology is an enabling one. With it, it is possible to capture phenomenon unique to solid electrolytes that normally are not observable. This is a key characteristic that is indispensable for conducting research and development of this class of all-solid-state batteries.
Product page: https://www.toyo.co.jp/material/products/detail/4990EDMS_120K
About TOYO Corporation
Since its founding in 1953, Toyo Corporation has been importing and selling the world’s most advanced measuring instruments. Current business fields include information and communications, automobiles, energy, EMC (electromagnetic compatibility), marine, software development, life sciences, etc.
We are expanding our business both domestically and internationally by focusing on the development of our products designed with our measurement technologies.
Under the slogan of “Creating the future with “Hakaru measuring technology”, the spread of 5G (5th generation mobile communication system) and the development of self-driving cars
By providing the latest solutions that support the future of technology, we contribute to the creation of a safe and environmentally friendly society, and the development of industry. Please visit the company’s website at https://www.toyo.co.jp/english.
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