Factorial Energy

Battery Production Manager - Mass Production

Join Factorial Energy in Cheonan as a Battery Production Manager. Lead battery manufacturing operations, ensuring quality and safety while driving efficiency. Benefit from working with a pioneering solid-state battery company partnered with global OEMs.
Factorial Energy
Factorial Energy
Cheonan, South Korea On-site Full time UTC+09:00

Factorial Energy

Company Overview

Name

Factorial Energy

Headquarters

Woburn, Massachusetts, United States

Founded

2013

Size

Approximately 150 employees (source: linkedin.com). Factorial has raised over $65 million and achieved a $1 billion valuation (source: batteryburnbook.com).

What They Do

Factorial Energy specializes in the development of solid-state batteries, which are pivotal for various applications including electric mobility, defense, AI/robotics, aviation, power tools, marine vehicles, consumer electronics, and energy storage systems. Their technology emphasizes high energy density, achieving 350-450 Wh/kg compared to the 200-300 Wh/kg typical of current electric vehicle (EV) cells. Additionally, Factorial's batteries are designed for enhanced safety, fast charging capabilities, and a wide operational temperature range from -30°C to 45°C (source: factorialenergy.com).

The core of their innovation lies in the Factorial Electrolyte System Technology (FEST®), which utilizes a quasi-solid polymer electrolyte combined with an ultrathin lithium-metal anode and a high-capacity cathode. This technology allows for approximately 80% compatibility with existing lithium-ion production lines, facilitating scalability and integration into current manufacturing processes (source: factorialenergy.com).

Complementary technologies such as Solstice™, a sulfide-based all-solid-state electrolyte, and Gammatron™, an AI-driven battery digital twin software, further enhance their offerings. Solstice™ boasts high thermal stability and zero liquid content, while Gammatron™ accelerates R&D in electrolyte development and battery management systems (source: enertherm-engineering.com).

Projects & Track Record

Factorial Energy has achieved significant milestones in battery development, including a series of prototypes that have progressively increased in capacity and complexity. Notable achievements include the validation of 0.6 Ah Li-metal chemistry in 2017, the introduction of a 40 Ah 30-layer graphite anode prototype in 2021, and the unveiling of a 106 Ah automotive B-sample cell at CES 2023. These advancements demonstrate Factorial's commitment to pushing the boundaries of solid-state battery technology (source: factorialenergy.com).

Recent Developments

In October 2023, Factorial Energy inaugurated its $50 million manufacturing facility in Methuen, Massachusetts, which is set to be the largest solid-state battery production line in the U.S. with a capacity of 200 MWh. This facility is expected to significantly enhance their production capabilities and support the scaling of automotive applications (source: waveep.com).

In 2024, the company shipped 106 Ah B-samples to various OEMs and unveiled their Solstice™ technology after a period of stealth development. Additionally, they have been recognized as a leading player in the deep tech sector, ranking #25 among the Top 100 Private Deep Tech Companies (source: factorialenergy.com).

Working There

Factorial Energy is actively hiring across various departments including R&D, manufacturing, sales, and engineering, particularly in response to their recent expansion efforts. The Methuen facility is expected to create over 150 jobs, contributing to the local economy while supporting the company's growth in solid-state battery production. The company culture emphasizes speed and innovation, with a focus on ethical governance and sustainability goals, including a commitment to carbon-neutral production by mid-2030 (source: factorialenergy.com).


Last updated on Feb 23, 2026 | Report an issue

Factorial Energy is a pioneering U.S.-based solid-state battery company driving the future of energy storage and electrification. Partnered with global leaders including Mercedes-Benz, Stellantis, Hyundai, and Kia, Factorial is at the forefront of developing next-generation e-mobility platforms for commercial, defense, and consumer applications-spanning electric vehicles (EVs), drones, eVTOL aircraft, power tools, marine systems, robotics, and more. The company has achieved multiple industry firsts, including being the first to power a demonstration vehicle with a global OEM (Mercedes-Benz) that achieved over 1,200 km (749 mi) of range, and the first to earn UN 38.3 certification for automotive-sized lithium-metal solid-state cells, and the first to deliver B-samples of automotive-sized solid-state batteries to major OEMs.

The Opportunity

Factorial Energy is seeking a Battery Production Manager to join our team in Cheonan, South Korea. This person will be responsible for planning, directing, and optimizing battery manufacturing operations while ensuring compliance with quality, safety, and production objectives. The Ideal candidate will possess strong technical knowledge of battery manufacturing processes, effective leadership and communication skills, and the ability to drive operational excellence in a dynamic production environment.

In this role, you will

  • Lead and manage daily production operations to meet safety, quality, delivery, and productivity targets.
  • Develop and execute production plans to achieve customer demand while maximizing equipment utilization and labor efficiency.
  • Manage production supervisors, technicians, and operators, providing coaching, performance management, and workforce development.
  • Monitor production KPIs, including throughput, yield, OEE, cycle time, scrap rate, and labor productivity.
  • Drive continuous improvement initiatives using Lean Manufacturing, Six Sigma, and problem-solving methodologies.
  • Collaborate with Process Engineering, Quality, Maintenance, Supply Chain, Planning, and EHS teams to ensure smooth production operations.
  • Identify production bottlenecks and implement corrective actions to improve efficiency and reduce downtime.
  • Ensure compliance with all safety regulations, environmental requirements, and company policies.
  • Support new product introduction (NPI), process validation, and production ramp-up activities.
  • Manage production budgets, labor planning, overtime, and resource allocation.
  • Lead root cause analysis for quality and production issues and implement sustainable corrective actions.
  • Ensure accurate production reporting and maintain manufacturing documentation.
  • Drive a culture of operational excellence, accountability, and continuous improvement.

We are looking for people who

  • Experience in lithium-ion battery cell mass production.
  • Knowledge of Lean Manufacturing, Six Sigma, TPM, and OEE.
  • Experience with APQP, PFMEA, Control Plan, SPC, and IATF 16949 manufacturing requirements.
  • Green Belt or Black Belt certification is a plus.
  • Experience supporting manufacturing scale-up and capacity expansion.
  • 8 years + experience

Work Location: Cheonan, South Korea

Factorial Energy is an equal opportunity employer that values diversity at all levels. All qualified applicants, regardless of personal characteristics, are encouraged to apply.

To request a reasonable accommodation to complete an application, job interview, and/or to otherwise participate in the hiring process, please contact ([email protected])

Apply now

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About the role

August 18, 2026

August 18, 2026

Full time

On-site

Company

Energy Storage, EV Charging Infrastructure

Factorial Energy

factorialenergy.com

  •  Cheonan, South Korea

8 years +

UTC+09:00