Ampcera Inc.

Ampcera Inc., founded in 2017 and based in Milpitas, CA, specializes in solid-state battery materials and integrated systems. Utilizing advanced sulfide-based electrolytes, they produce high-energy, safe batteries with up to 400 Wh/kg and rapid charging. Serving over 200 global clients, Ampcera is expanding production to meet growing demand by 2026.

Company Location

Country:

United States

City:

Milpitas, California

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Company Overview

Ampcera Inc., founded in 2017, is a leading developer and manufacturer of solid-state battery materials focusing on advanced electrolyte solutions and integrated battery systems. The company aims to evolve energy storage technology by creating high-performance solid-state batteries with superior safety features and up to 50% more energy capacity than traditional lithium-ion batteries. Headquartered in Milpitas, California, Ampcera serves over 200 customers globally, including major automotive manufacturers and battery producers, backed by a strong patent portfolio.

Battery Technology

Ampcera’s core technology is based on sulfide-based solid electrolytes designed for exceptional purity and ionic conductivity, enabling ultra-high energy density batteries with fast charging and intrinsic safety. Their solid-state technology uses high-capacity NMC cathodes and silicon-based anodes, achieving energy densities up to 400 Wh/kg. The graphite-free battery design can withstand over 5,000 charge cycles with high capacity retention and charges to 80% in under 15 minutes at a 4C peak rate. Manufacturing includes a pre-pilot plant (1-ton annual capacity) and an industrial pilot plant (20 tons), with plans to scale to 1,000 tons by 2026 while reducing material costs below $50/kg.

Products

Ampcera produces solid-state batteries featuring sulfide-based solid electrolytes, high-capacity NMC cathodes, and silicon-based anodes. Their batteries deliver up to 400 Wh/kg energy density, sustain over 5,000 charge cycles, and support extreme fast charging—reaching 80% capacity in under 15 minutes at a 4C rate. The design is graphite-free addressing supply chain constraints, targeting applications in automotive and energy storage sectors.

Recent Projects

In 2023, Ampcera received a $2.1 million grant from the U.S. Department of Energy to advance solid-state battery development in collaboration with a major U.S. automaker. They have engaged in multiple joint development agreements to optimize manufacturing processes for commercial production starting in 2026. Ampcera recently achieved a milestone of 5,000 charge cycles with their silicon-anode battery technology, demonstrating progress in energy density and fast-charging.

Investors

In 2022, Ampcera secured $15M in a Series A funding round led by Hanwha Solutions Corporation. They have also received multiple grants from the U.S. Department of Energy supporting research and low-cost manufacturing development. Total funding to date stands at $17.5M, facilitating technology advancement and production scaling of sulfide-based solid electrolyte materials.

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