Honey, I shrunk the battery!

Honey, I shrunk the battery!

J.D. DiGiacomandrea, applications engineering manager at global battery manufacturer Ultralife Corporation looks at how thin cell batteries are revolutionising a number of industrial sectors.

Thin cell batteries are some of the smallest batteries available on the market. However, despite their small size, they are capable of providing a stable voltage to power electronic devices and outperform coin cells at higher discharge rates. So what makes thin cells different from other types of batteries on the market?

The chemistry behind thin cell batteries originated over twenty years ago when Ultralife developed the 9 volt battery. Over the years of developing one of the most successful batteries on the market, Ultralife’s engineers changed the cell layout to maximise the space used. The original cylindrical cells wasted vital space by using a square formation, so the thin cell battery was developed as a pouch with square cells. It was also necessary to keep moisture out of the cell, so Ultralife’s engineers sealed the cell with a bespoke mixture of materials to ensure battery longevity.

Because of this longevity and the small size of the battery, the thin cell battery is having an impact on a number of different industries, allowing engineers to make devices smaller, yet just as effective. For example, asset tracking is becoming increasingly sophisticated and is better able to protect items because of the development of thin cell batteries.

On construction sites, large quantities of materials are delivered and received every day, with vehicles and people moving in and out the site regularly. This makes it a prime target for the theft of valuable metals such as copper. Using thin cell batteries in small trackers attached to the valuable materials is a much more efficient way than using RFID tags.

For the forgetful among us, companies are now offering Bluetooth tracking tags.

The security sector is also benefiting from increasingly small batteries.

The medtech sector is another growing market where thinner and smaller batteries make patient monitoring easier. Juxtaposed alongside the growing medical wearables market

These sectors are only a selection of those where the use of thin cell batteries has made devices smaller, while not compromising on a reliable power source. With more sectors taking heed of the Internet of Things (IoT), the industry trend for connected devices, the demand for smaller components will increase.

While we might not be seeing a shrinking device in reality any time soon, the IoT means that device manufacturers are increasingly looking for smaller, yet reliable components, meaning they must rely on the expertise of experienced and innovative companies.


Honey, I shrunk the battery!