Altau Energy Inc. · Somerville, Massachusetts

The #1 constraint on AI isn't compute. It's power.

Altau builds non-flammable, all-solid-state batteries that install inside the data center, where conventional lithium-ion can't, absorbing demand spikes to unlock more AI capacity from the grid you already have.

01 · Technology

An all-inorganic solid-state battery, from electrode to electrolyte.

Our cells use a proprietary inorganic solid electrolyte, with no flammable liquids or organic components. Built on earth-abundant materials and conventional manufacturing, they redefine the safety and cost of stationary storage beyond LFP.

/ SAFETY

Non-flammable by construction

No combustible electrolyte, no thermal runaway. Safe where lithium-ion can't go.

/ COST

A fraction of lithium-ion's cost

A landed cost far below today's lithium-ion systems, low enough that storage turns a profit on its own, without subsidies.

/ SCALE

Built to scale

Earth-abundant, domestically sourceable materials and standard, capital-efficient manufacturing, with no exotic processes.

02 · Application

More compute from the same interconnect.

Grid connections take four-plus years, yet most sites peak at only two-thirds of nameplate because AI workloads are spiky. A battery behind the meter shaves those spikes, unlocking up to 30% more IT load, a 1.2-1.3× capacity multiplier.

/ CAPACITY MULTIPLIER 1.2-1.3× MORE IT LOAD, SAME GRID POWER TIME AI DATA-CENTER DEMAND GRID INTERCONNECT LIMIT BATTERY DISCHARGES (PEAK SHAVING) BATTERY RECHARGES (VALLEY FILL) A right-sized battery absorbs the demand spikes above the grid limit, so the site serves more IT load on the same connection.
1.2-1.3×effective capacity per interconnect
Weeksto capacity, not the years a grid upgrade takes
Zeroon-site fire risk, compact enough to install beside the rack

03 · Team

Founded by the scientists behind the chemistry.

Tao Dai

Tao Dai

Founder

Tao Dai is a battery scientist and founder of Altau. A researcher in materials for energy storage, he has spent years developing the inorganic solid-state electrolyte chemistry that Altau's cells are built on. Today he leads the company's technology, from electrolyte to full cell, along with operations and fundraising.

Ju Li

Ju Li

Founder & Chief Scientist

Ju Li is a professor of Nuclear Science and Engineering and of Materials Science and Engineering at MIT, and a founder of Altau. For three decades his research group has worked at the frontier of energy storage and materials. As chief scientist, he guides the company's science, from cell design to the fundamentals of its solid-state materials.

Vision

Storage that no longer needs a subsidy.

Altau starts where safety is non-negotiable: the data centers powering the AI era. But its low cost reaches further, closing the storage-cost gap that holds solar back at scale, so clean power can pay its own way, without subsidies or policy. Site by site, it can spread on its own economics, sparking a new era of clean energy storage across the world.

04 · Contact

If you run or build AI data centers and you're hitting a power or interconnect wall, or you invest in energy and infrastructure, we'd like to talk.

Email contact@altauenergy.io
Location

Somerville, Massachusetts, USA