Japan's TDK Company claims to have made breakthrough progress in solid-state batteries, and the battery life of small electronic devices is expected to be significantly improved

News from this site on June 17, according to the British Financial Times, Japan's TDK announced that it has made a breakthrough in materials used in small all-solid-state batteries, which is expected to significantly improve the performance of devices ranging from wireless headphones to smart watches. The new material has an energy density (i.e., the amount of energy that can be stored in a specific space) of 1,000 Wh/L, which is approximately 100 times that of TDK’s current mass-produced batteries.

This Apple supplier has been promoting the development of small all-solid-state batteries since 2020, and currently has products It provides an energy density of 50 Wh/L, compared with approximately 400 Wh/L for conventional liquid electrolyte rechargeable coin cells.

We firmly believe that our newly developed all-solid-state battery materials can make a significant contribution to society's energy transformation. We will continue to work hard to achieve commercialization as soon as possible, said TDK CEO Noboru Saito.

The battery developed this time will be made of all-ceramic materials, including an oxide-based solid electrolyte and a lithium alloy negative electrode. TDK said the battery's high storage capacity will enable smaller size and longer life, while the oxide material provides high stability, thereby improving safety. This battery technology is designed to be used in small batteries to replace existing coin-type batteries for watches and other small electronic devices.

This breakthrough represents an important step in the development of all-solid-state battery technology. Industry experts believe that this technology is expected to revolutionize energy storage, but it also faces huge challenges in mass production, especially in large-size batteries.

According to our understanding, compared with traditional liquid electrolyte batteries, all-solid-state batteries have the potential advantages of being safer, lighter, potentially lower cost in the future, longer life and faster charging. The company said the ceramic materials used by TDK mean larger batteries will be more fragile, meaning overcoming the technical challenges of making batteries for cars or even smartphones will not be possible for the foreseeable future.

. Kevin Shang, a senior research analyst at data analysis company Wood Mackenzie, said that solid-state oxide batteries used in smartphones also face challenges such as "characteristics that are not conducive to machining" and difficulty in achieving large-scale mass production.

Industry experts believe that the most significant application of all-solid-state batteries may be electric vehicles, because it can make electric vehicles have a longer driving range. Japanese companies are at the forefront of pushing to commercialize the technology, with Toyota aiming for commercialization in 2027, Nissan in 2028 and Honda in late 2030. Yet there remains skepticism about the much-anticipated technology, especially the large batteries needed to enable electric vehicles. Zeng Yuqun, founder and CEO of CATL, the world's largest electric vehicle battery maker, told the Financial Times in March that all-solid-state batteries lack performance, have poor durability and have safety issues.

Founded in 1935, TDK became a household name with its cassette tapes in the 1960s and 1970s. The company has extensive experience in battery materials and technology and currently holds 50% to 60% of the global market share for small batteries such as smartphones, and is committed to developing products including energy storage devices and large electronic equipment such as drones. to achieve a leading position in the mid-sized battery market.

TDK plans to provide customers with samples of its new battery prototype starting next year, and hopes to move into mass production later.

The above is the detailed content of Japan's TDK Company claims to have made breakthrough progress in solid-state batteries, and the battery life of small electronic devices is expected to be significantly improved. For more information, please follow other related articles on the PHP Chinese website!