Why Silver-Zinc

Our Unique Rechargeable Chemistry Offers Several Advantages. See the Silver-Zinc Difference for Yourself.

After 50 Years and Millions of Miles, ZPower Silver-Zinc Has Arrived.

During the 1960s, NASA developed silver-zinc batteries for mission-critical applications in spacecraft, including the Apollo command module. Although the batteries offered high energy density, they had narrow applications due to their raw materials expense and low cycle life. More than 100 patents later, ZPower has led the way in making this superior chemistry smaller and fully rechargeable — and in the process opening a world of exciting new applications.

Open Hearing Aid Door with Silver-Zinc microbattery

A Small Battery With Big Benefits.

Two hearing aid silver-zinc microbatteries

A Superior Chemistry

From the outset, silver-zinc’s combination of stability and high energy density presented tremendous potential for applications that place a high priority on size, safety and performance.

Supports Miniaturization

Silver-zinc offers higher energy density at smaller sizes than Li-ion. And, because of the water-based chemistry, product designers could leave behind the protective circuitry and casing required by Li-ion – and create even more compact products.

Intrinsically Safe

Hearables and wearables are growing in popularity and widening in use case. But these devices require an even greater level of care when it comes to safety. Users — and the manufacturers of the devices that serve them — can rest easy with our rechargeable batteries, knowing silver-zinc poses no danger of fire or combustion.

Hassle-Free Logistics

Silver-zinc microbatteries also create operational efficiencies for OEMs. A safe, stable chemistry alleviates the need for special training, handling or packaging, and as a dry battery, carries no shipping restrictions.

Eco-Friendly

While Li-ion is primarily landfilled or downcycled, silver-zinc is recyclable. It is also mercury-free.

Long-Lasting

Using our patented charging method, we’ve significantly extended the typical cycle life of silver-zinc, retaining over 85% capacity after 500 cycles.

We’ve Redefined Our Industry. Now You Can Redefine Yours.

ZPower silver-zinc microbatteries have reshaped the way the industry thinks about product design and development. The ZPower team can help you raise the bar in your industry for safety, reliability, size, design and performance.

ZPower batteries provide 400 Wh/L in packages smaller than the collar button of a dress shirt.

Silver-zinc batteries are aqueous so there is no threat of thermal runaway or fire.

ZPower silver-zinc batteries make your devices easier to get to market; no special packaging and no transportation restrictions.

Our batteries carry very low regulatory complexity.

Our batteries maintain >85% discharge capacity after 500 cycles.

Unlike most batteries, silver-zinc microbatteries are eco-friendly and recyclable.

ZPower battery parts. Can, Cathode, Separator, Anode, and Lid.

Download Our White Paper and Get the Full Story.

Download White Paper

See Exactly Where Silver-Zinc Overpowers Li-Ion.

Silver-Zinc vs Li-ion