The world’s lightest rechargeable cell is here.

Two times the energy density of lithium‑ion cells.

A million times the potential.

Welcome to SolidEnergy.

Next-Generation Technology

In semiconductors Moore’s Law says the number of transistors per area doubles every 18 months, in battery there is a similar phenomenon, where the energy density doubles every 30 years. What we all think of as today’s most advanced battery technology, Li-ion, is actually 30 years old. With lithium metal, we enter a new era in battery technology—lighter and more powerful, not to mention safer than ever. Our unique technology taps into the potential of lithium metal, while eliminating all of the past hazards. Discover how this breakthrough cell technology works.

About Us

Started by a Harvard/MIT student team out of a world-renowned lab at MIT, SolidEnergy is home to a deep bench of proven battery experts. Learn more about our team and our vision of helping you realize your vision.

SES in the News

Out of the laboratory and into the world. See what the press has been saying about us and what we have been saying to the world.

SolidEnergy CEO sees breakthrough in technology of next-generation batteries

The Korea Times

As a scientist-turned-CEO, Qichao Hu of SolidEnergy Systems is passionate about the application of one’s pursuits…

MIT Spinoff to Market Breakthrough Batteries by 2017


We’d all love our phones and tablets to have longer staying power, so announcements of new battery technology are often catnip for techheads. Unfortunately…

Better Lithium Batteries to Get a Test Flight

Technology Review

Scientists have known for decades that lithium-metal batteries offer a powerful combination of energy density and compactness. Unfortunately these…

Connect with Us

If you’re interested in becoming an SES customer, investor or team member, we’d really like to hear from you. Have questions? Looking for more information? Whatever you need, we’re here to help you unlimit your potential.