Japanese firm Maxell has developed a coin type all-solid-state battery for use as the main power source in IoT devices.

Samples of the PSB2032 will be available before the end of the year.

In infrastructure facilities and factories, significant labour is required for monitoring the operational status of equipment and performing maintenance work on such equipment. However, with the recent decline in the labour force, it is becoming increasingly difficult to maintain conventional practices.

To improve the situation, there is a growing demand for automation and efficiency improvement through IoT and AI technologies. As a result, the adoption of IoT sensor devices equipped with communication functions that allow for continuous monitoring of equipment and facility conditions over extended periods without requiring human effort is progressing, along with the demand for power sources that offer greater capacity and higher reliability.

To meet these needs, Maxell has developed the PSB2032, a coin type all-solid-state battery designed to be suitable as the main power source for IoT devices. The battery is 20mm in diameter and 3.2mm high. It delivers a capacity of 35mAh, about four times that of the ceramic- packaged PSB401010H currently in mass production, making it suitable for use as the main power source for IoT devices.

The PSB2032 incorporates key features of Maxell’s all-solid-state batteries, such as a wide discharge temperature range, reliability and safety, while maintaining the sealing capability equivalent to ceramic-packaged models.

In addition, samples come pre-equipped with connection terminals suitable for mounting into small-sized devices, enabling the all-solid-state batteries to accommodate different mounting methods.

By combining with wireless power transfer and energy harvesting technologies, Maxell (www2.maxell.co.jp) says it hopes the all-solid-state batteries (biz.maxell.com/en/rechargeable_batteries/allsolidstate.html) will contribute to realising a sustainable society.