In the News

This new solid-state lithium microbattery could support the development of smaller devices as well as devices with more functionality.

At a Glance

• The lithium battery utilizes a stainless-steel foil substrate made in a roll-to-roll process
• The solid-state design features a nonflammable solid-state electrolyte

Compact, rechargeable batteries in the capacity range of 1-100 mAh are targeted for form-factor-constrained wearables and other high-performance electronic devices, which have core requirements including high volumetric energy density (VED), fast charging, safety, surface-mount technology (SMT) compatibility, and long cycle life. To maximize the VED, anodeless solid-state lithium thin-film batteries (TFBs) fabricated by using a roll-to-roll process on an ultrathin stainless-steel substrate (10-75 μm in thickness) have been developed. A high-device-density dry-process patterning flow defines customizable battery device dimensions while generating negligible waste. The entire fabrication operation is performed in a conventional, humidity-controlled cleanroom, eliminating the need for a costly dry-room environment and allowing for simplified, lower-cost manufacturing. Such scale-up using an anodeless architecture also enables a thermal-budget-compatible packaging and metallization scheme targeted at industry-compatible SMT processes. Further manufacturability improvements, such as the use of high-speed tests, add to the overall range of elements necessary for mass production.

Solid-state lithium battery technology will remove Li-ion performance limitations and enable both form-factor flexibility and more scallable production and assembly techniques.

Ensurge Micropower, a provider of solid-state lithium microbatteries for a new generation of wearables, hearables and IoT devices, has announced it is producing packaged lithium solid-state microbatteries with high performance and improved manufacturing flow. In addition to this progress, Ensurge has started producing sample volumes of high capacity multi-layer solid-state lithium microbatteries using its architecture based on a 10-micron stainless steel substrate. Achieving these milestones is a major step toward bringing Ensurge's solid-state microbattery products into volume production, now projected for the second half of the year.

A new generation of connected health and fitness devices is pushing rechargeable microbatteries beyond the capabilities os Lithium-Ion (Li-ion) technology

Solid-state lithium microbattery technology is poised to leapfrog Li-ion and Li-poly alternatives for hearable and wearable devices.

Solid-state lithium rechargeable microbattery technology enables smaller, better-fitting devices.

Microbatteries are on the cusp of a new era as solid-state lithium technology arrives to pack more energy into smaller form factors.

Solid-state lithium microbatteries are set to transform how small, connected devices are designed and powered, but it requires an understanding of how they work.

Ensurge Micropower, a leading provider of solid-state lithium microbatteries for a new generation of wearables and IoT devices, announced it is engaged with multiple large multinational corporations as strategic partners and is actively working on providing the Ensurge microbattery unit cells to these partners for their evaluation.

As solid-state lithium battery technology grows in adoption — especially for electrical vehicles (EVs) — it is equally attractive for an emerging class of 1 to 100 milliampere-hour (mAh) applications that need a combination of high energy density and small, customizable form factors..

Ensurge has filed multiple patents for its proprietary battery tech, which uses solid-state lithium in a first-of-its kind method to enable 1-100 milliampere-hour (mAh) rechargeable microbattery products.