【米・電池2社がMOU】リチウム金属負極と固体電解質の融合で商業化へ

2026年2月9日、ノースカロライナ州のSoelect Inc.とニューヨーク州のNatrion Inc.が、次世代リチウム金属電池（LMB）の開発・製造に向けた戦略的提携（MOU）を締結しました。

提携の目的: Soelectの「負極材」とNatrionの「固体電解質セパレーター」を組み合わせ、安全で高エネルギー密度なリチウム金属電池の大量生産を加速させる。
各社の役割:
- Soelect: 独自の「Lithium-X」技術を用いたリチウム金属複合負極材を提供。
- Natrion: 既存の製造設備でリチウム金属電池の組み立てを可能にする固体電解質「ActiveSST」を提供。
今後の展開: 2026年中にSoelectのアノードを組み込んだセルを防衛および商業パートナーへ提供開始する予定。

関連情報と背景解説
まとめ：提携の主要スペック
[US Battery Duo Sign MOU] Path to Commercialization through Fusion of Lithium-Metal Anode and Solid-State Electrolyte
Related Information and Background
Summary: Key Partnership Specifications

まとめ：提携の主要スペック

項目	内容
提携企業	Soelect Inc. (NC州) × Natrion Inc. (NY州/IL州)
主要技術1 (Soelect)	Lithium-X リチウム金属複合負極材
主要技術2 (Natrion)	ActiveSST 固体電解質セパレーター
主な利点	高エネルギー密度、長サイクル寿命、既存設備での量産性
供給開始時期	2026年内 (防衛・商業パートナー向け)

出典：https://www.natrion.co/news/soelect-and-natrion-sign-memorandum-of-understanding-for-the-commercialization-of-next-gen-lithium-metal-batteries

Gemini said

ご依頼いただいたSoelectとNatrionの提携に関するニュースまとめを英語に翻訳しました。プレーンテキストのみを使用し、読みやすさを重視した構成にしています。

[US Battery Duo Sign MOU] Path to Commercialization through Fusion of Lithium-Metal Anode and Solid-State Electrolyte

On February 9, 2026, North Carolina-based Soelect Inc. and New York-based Natrion Inc. announced a Strategic Memorandum of Understanding (MOU) for the development and manufacturing of next-generation lithium-metal batteries (LMB).

Purpose of Partnership: To combine Soelect’s anode materials with Natrion’s solid-state electrolyte separator to accelerate the mass production of safe, high-energy-density lithium-metal batteries.
Roles of Each Company:
- Soelect: Providing lithium-metal composite anode materials using its proprietary Lithium-X technology.
- Natrion: Providing ActiveSST solid-state electrolyte, which enables the assembly of lithium-metal batteries using existing manufacturing equipment.
Future Outlook: Deliveries of cells incorporating Soelect’s anodes are scheduled to begin in late 2026 for defense and commercial partners.

Related Information and Background

What is a Lithium-Metal Battery (LMB)?

A battery that replaces the conventional lithium-ion battery (LIB) anode (typically graphite) with metallic lithium.

Massive Energy Density: LMBs can potentially store nearly twice as much energy as LIBs, promising to dramatically extend the driving range of electric vehicles (EVs).
Challenges and Solutions: While metallic lithium carries risks of short circuits and fires due to dendrite (needle-like crystal) growth, the combined technologies of these two companies (composite anode and solid separator) are designed to solve these safety issues.

Building a Domestic U.S. Supply Chain (Value Chain)

A major highlight of this partnership is the strengthening of a “Made in USA” next-generation battery supply network.

Backing of Soelect: Invested in by General Motors (GM) and Lotte Ventures, the company has strong ties to the U.S. automotive industry.
Natrion’s Innovation: While solid-state batteries usually require entirely new factories, Natrion’s technology can be used on existing lithium-ion production lines, allowing for low-cost and rapid scaling.

Target Markets

Implementation is initially expected in the following sectors:

Defense Industry: Equipment requiring high safety and high energy in extreme environments.
Automotive (EV): Premium EVs seeking long-range capability and lightweighting.
Electronics: Extended battery life for smartphones and wearable devices.

Summary: Key Partnership Specifications

Item	Details
Partner Companies	Soelect Inc. (NC) x Natrion Inc. (NY/IL)
Key Technology 1 (Soelect)	Lithium-X Lithium-Metal Composite Anode
Key Technology 2 (Natrion)	ActiveSST Solid-State Electrolyte Separator
Main Advantages	High energy density, long cycle life, mass-producible on existing lines
Delivery Start Date	Within 2026 (For defense and commercial partners)