Sound like ELVA might have a piece of this.....

https://www.defense.gov/News/News-Stories/Article/Article/3417484/collaboration-and-standardization-are-key-to-dods-battery-strategy-meeting-us-e/

The President's recently released FY 2024 defense budget request makes critical investments into revitalizing the defense industrial base, driving innovation, and building enduring advantages. The budget request invests approximately $6 billion in fostering industrial base resilience, including long-term investments in five defense-critical sectors in alignment with E.O.14017, including $125 million in battery and energy storage.

The first step toward bringing the commercial market into defense batteries is currently underway with DIU's Jumpstart for Advanced Battery Standardization program that prototypes commercial batteries to electrify current and next-gen military platforms. The program focuses exclusively on leveraging commercial EV batteries at the module and pack level to inform both the process of integration into military vehicles and the military specifications for electrification of future platforms.

Bring In Commercial Best of Breed: Source rechargeable battery cells from domestic and allied battery manufacturers to serve DOD storage capacity and performance requirements 

In the Q3 CC- Raj eluded to an expansion of ELVA Labs in 6 months.

Work under FASTBat aims to aggregate the DOD's purchasing power, increase the demand signal to commercial battery manufacturers, and provide an approved battery pack form-fit-function to power military systems. This work will include designing, prototyping, testing, and evaluating battery cells and/or packs, as well as integrating the batteries into devices as applicable.