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What is a microbattery?

The tiny devices that power your mobile life are about to get a whole lot better

Our high-tech, mobility-driven world would be impossible without batteries. Around the house, behind the wheel, at the office, and on the run, we rely on batteries of all shapes and sizes to get through each day. At Ensurge, we're commercializing battery innovations to make the next generation of portable devices better than ever.

Let's focus the discussion: the tiniest batteries are called microbatteries, and they enable giant markets. No bigger than the size of a fingernail, microbatteries* provide energy storage for micropower applications like earbuds, hearing aids, wearable sensors, medical devices, IoT sensors, and much more. Rapid growth in micropower applications, driven by increasing consumer adoption, could result in a $10 billion microbattery market in just a few years.

Coin and button cells can severely restrict wearable product design

Coin and button cells can severely restrict wearable product design

Today's most common rechargeable microbatteries are coin and button cells (thick metallic discs) and pouch cells (core battery material encased by a metallic film). Coin and button cells frustrate designers with their thick, circular shapes. Pouch cells can take several forms, but their chemistry and lack of mechanical shielding can make them prone to catastrophic safety failures including excess heat, smoke, and even fires.

Ensurge microbatteries deliver maximum energy storage in ultracompact devices

Ensurge microbatteries deliver maximum energy storage in ultracompact devices

Ensurge's innovative microbatteries are designed to solve these problems at a fundamental level. By using different battery materials — specifically, a solid electrolyte layer instead of the liquid electrolyte used in lithium-ion batteries — Ensurge can create extraordinarily small devices that are easier to design into electronics while retaining a very high energy storage capacity and dramatically improving safety. Ensurge microbatteries can also be tailored to optimal shapes and sizes for each application, enabling smaller, more comfortable wearables and completely new categories of devices.

As UC San Diego Professor Shirley Meng, states: "Every time we invent a new type of battery, we unlock some applications people have never thought about before." At Ensurge, this means enabling new microapplications in ultrathin and ultralight devices that could monitor personal vital signs or even the surrounding environment to provide valuable real-time data to those who depend on them. Better batteries enable previously impossible applications, and Ensurge is excited to produce smaller, higher capacity, more reliable, faster charging, and safer batteries for the next generation of hearables, wearables, connected sensors, and beyond.

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*In technical terms, microbatteries to store up to roughly 400 milliwatt-hours of electric charge (alternately, up to 100 milliamp-hours at approximately four volts).

About Ensurge

Ensurge is Energizing Innovation™ with ultrathin, flexible, and safe energy storage solutions for wearable devices, connected sensors, and beyond. Ensurge's innovative solid-state lithium battery (SSLB) technology is uniquely positioned to enable the production of powerful, lightweight, and cost-effective rechargeable batteries for diverse applications. The company's state-of-the-art flexible electronics manufacturing facility, located in the heart of Silicon Valley, combines patented process technology and materials innovation with the scale of roll-to-roll production methods to bring the advantages of SSLB technology to established and expanding markets. Ensurge Micropower ASA ("Ensurge") is a publicly listed company in Norway (OSE: ENSU) and the United States (OTCQB: ENMPY) with corporate headquarters in Oslo and global headquarters in San Jose, California.

What is a Microbattery?

16 November 2021

Learn how Ensurge Microbattery can energize innovation in your most challenging designs