Introducing the world's first large-format 100Ah Li-Metal cells
- Denser. >400 Wh/kg and 1,000 Wh/L, providing longer range for EVs and eVTOLs
- Lighter. Ultra-thin Li-Metal anode reduces battery weight
- Scalable. Manufacturable at scale using existing Li-ion processes
- Smarter. AI-powered algorithm monitors battery health
Introducing the world's first large-format 100Ah Li-Metal cells
- Denser. >400 Wh/kg and 1,000 Wh/L, providing longer range for EVs and eVTOLs
- Lighter. Ultra-thin Li-Metal anode reduces battery weight
- Scalable. Manufacturable at scale using existing Li-ion processes
- Smarter. AI-powered algorithm monitors battery health
SES AI’s Li-Metal Battery
“It’s all about cost and range and charging. And we think the SES technology delivers on all of those promises.”
KENT HELFRICH
CTO and VP Research & Development, General Motors | President, GM Ventures
CTO and VP Research & Development, General Motors | President, GM Ventures
“Let’s communicate closely in the common language of technology and be the first in the world to bring the Li-Metal battery to the automobile market.”
YOSHIYA JOSH FUJIWARA
Expert engineer, Honda R&D
“This technology will definitely become part of the enabling technology for our future product, giving tremendous benefit to our customers.”
CHANG HWAN KIM
VP Energy & Environmental Chemical Systems, Hyundai
SES AI is more than just a battery company
We are definitely a battery company. We design and manufacture perhaps more Li-Metal cells than everyone else combined. Yet we are more than a battery company. We are also developing two fundamental platforms. One is a super intelligent battery digital-twin to improve traceability, quality management, and battery health monitoring. Here we synthesize everything from mines, to materials, to battery manufacturing, to vehicle integration, to data, and to recycling. Another is a super intelligent scientist, where we train machine learning models to design new materials and processes.
A lighter long-range EV and eVTOL battery
SES AI’s first-of-its-kind, hybrid Li-Metal batteries combine high energy density with the cost-effective, large-scale manufacturing of conventional Li-ion batteries.
A transparent EV and eVTOL battery supply chain
SES AI is leveraging blockchain to improve sustainability and equity throughout the entire EV and eVTOL supply chain.
EV and eVTOL superintelligence powered by AI
SES AI is advancing battery manufacturing quality, safety, and performance with AI-powered safety and battery management software.
Backed by global leaders
Top global automotive OEMs, cell manufacturers, equipment manufacturers, and raw material suppliers partner with and invest in SES AI
News & insights
THE WALL STREET JOURNAL
The EV Battery of Your Dreams Is Coming
“SES AI is already the first company in the world to deliver to an automaker advanced prototypes of batteries with a particular kind of new tech, and is working with GM, Hyundai and Honda. In 2025, SES AI expects to deliver the next iteration of its cells, which are suitable for use in a fleet of prototype vehicles.” + Read the article
THE INFORMATION
In a Deal With Hyundai, SES Widens Lithium-Metal Lead
“The development is significant: SES, based in Woburn, Mass., is the only lithium-metal anode producer that has reached the B Sample stage with a major automaker, and as we have reported, it appears to be the lithium-metal developer most likely to achieve commercial EV production.” + Read more
AUTOMOTIVE NEWS
U.S. EV battery upstart, Hyundai-Kia close in on lithium metal battery commercialization
“SES AI Corp., a U.S. maker of electric vehicle batteries, stepped closer to commercializing breakthrough next-generation lithium metal batteries as early as 2026 with a new agreement to build and operate a test and verification line with ” + Read more
