Honda's Solid-State Battery Will Be 'Revolutionary': 70% Charge in 12 Minutes

QuantumScape and Honda R&D have signed a multi-year research collaboration for the development and production of solid-state batteries for electric vehicles. The two companies announced the agreement on Thursday, marking a significant milestone after the launch of the pilot production line that took place earlier this year. This agreement follows an extensive technical study conducted by the Japanese manufacturer, which evaluated the technological platform by conducting comparative tests with competitors.

The agreement focuses on production methods and the development of proprietary architecture for components. Atsushi Ogawa, chief operating officer of Honda's research center, highlighted how the technology has shown unique and competitive advantages during evaluations. Company executives see strong potential for the use of these solutions across a wide range of applications, including the automotive sector, motorcycles, electric equipment, and energy storage systems. For the U.S. battery manufacturer, this marks the second major agreement with a global automaker, following the collaboration initiated with the Volkswagen Group. Shares of the American company increased by 12% immediately after the news of the new partnership was released.

Honda: Agreement with QuantumScape for a Revolutionary Battery

The industrial base for this agreement resides in the Eagle Line, the automated line installed in San Jose, California, whose key equipment was completed by the end of 2025 ahead of the official inauguration in February. This facility adopts the rapid manufacturing process of the separator called Cobra, designed to allow gigawatt-hour scale manufacturing. The tech company's business strategy does not involve direct mass manufacturing but focuses on the model of industrial licenses with partners for implementing large-scale projects.

The first commercial product resulting from these developments is the QSE-5 cell, a unit measuring 84.5 mm × 65.6 mm × 4.6 mm, with a capacity of 5 Ah and an energy density exceeding 844 Wh/L. The configuration features a metal lithium anode paired with a ceramic separator, an architecture that offers performance improvements in terms of safety, lifespan, and energy refill speed compared to traditional lithium-ion batteries. The system indeed allows for a quick recharge from 10% to 80% in just 12.2 minutes, maintaining operational capacity even under harsh climatic conditions down to a minimum temperature of -30 °C.

Volkswagen has already showcased a prototype vehicle equipped with these cells in September, specifically a significantly modified Ducati V21L motorcycle. For its part, the Japanese company already has internal experience in the field, having started a pilot production of solid-state batteries in January 2025 at the Sakura plant in Japan, although it has scaled back its overall electrification plans. The multi-year agreement for the joint development of QuantumScape technology does not currently entail the disclosure of financial details or selling prices of the cells.