World's Largest Battery Maker Signs Record Sodium Deal

The world's largest battery maker just proved that affordable, long-lasting energy storage is no longer a dream. On April 27, CATL signed a record 60 GWh sodium-ion battery deal with energy storage company HyperStrong, the largest order of its kind ever placed.

The three-year agreement is massive. For context, it equals half of all the energy storage batteries CATL delivered in 2025.

Here's why this matters: Sodium-ion batteries use common sodium instead of lithium, which is 1,000 times more abundant and far cheaper to source. That means dramatically lower costs for storing renewable energy on the grid, the biggest bottleneck slowing down our transition to clean power.

CATL's sodium batteries pack impressive specs. They deliver over 15,000 charge cycles while maintaining 80% capacity, potentially lasting 40 years with daily use. They work in extreme temperatures from -40°C to 70°C, far beyond what most lithium batteries can handle.

The real genius is in the design. CATL made their sodium cells the exact same size as their lithium batteries, so energy storage companies can install them using existing equipment and supply chains. No expensive infrastructure overhaul needed.

The company first unveiled this technology in 2021, and skeptics questioned whether it could ever scale beyond the lab. This 60 GWh deal answers that question definitively.

CATL isn't stopping at grid storage either. They're pushing sodium batteries into electric vehicles, with mass production planned by the end of 2026. The first sodium-powered EV, the Changan Nevo A06, already hit the streets in February.

The Ripple Effect

This breakthrough could reshape energy economics globally. If sodium batteries deliver 15,000+ cycles at a fraction of lithium's cost, grid-scale storage becomes affordable for countries and communities that couldn't justify the investment before.

More affordable storage means more reliable renewable energy. Wind and solar power need batteries to store energy when the sun isn't shining and wind isn't blowing. Cheaper batteries make that storage practical everywhere, not just in wealthy nations.

Industry experts are calling this a potential "DeepSeek moment" for energy storage, similar to how DeepSeek disrupted assumptions about AI costs. Wide adoption of sodium could trigger a cascade of cost reductions across the entire sector.

CATL already controls nearly 40% of the global EV battery market. Now they're positioning to dominate the exploding energy storage market too, which is projected to hit $1.08 billion in 2026 and growing 15.8% annually.

The technology that seemed experimental just two years ago is now a commercial product with the largest order in history behind it.