Rejobs

Battery Scientist I or II

Join Ion Storage Systems in Beltsville, Maryland as a Battery Scientist I or II. This role focuses on developing lithium-based solid-state batteries through research, prototype testing, and data analysis. Enjoy benefits like equity opportunities, paid parental leave, and a wellness allowance in a collaborative startup environment.

On-site Full time UTC-05:00 Updated today
Salary
US$75,000–90,000 /year

Applies on ionstoragesystems.com

Check your inbox.

On a phone? Apply from a computer later.

We are looking to add a full-time Battery Scientist I or II to our team in Beltsville, MD. Level will be determined by experience and educational background. You will build understanding of our lithium-based solid-state battery technology at the cell level through characterization of component materials, assembly and testing of battery prototypes, electrochemical experiments, and data analysis. This is a strong fit for an early-career scientist who is curious and inventive, with a strong desire to learn new experimental and analytical techniques and the underlying electrochemical fundamentals that dictate our batteries' performance. Much of this work involves questions that no one has answered yet; as you grow in the role, you will be expected not only to execute established processes but also to propose your own approaches.

Key Responsibilities

  • Learn and perform research on electrochemical cells and their component materials via electrochemical experiments, mechanical characterization, materials characterization, and destructive physical analysis
  • Fabricate prototypes of ION's unique battery technology and conduct testing with a focus on scientific rigor, repeatability, and statistical analyses in an industrial setting
  • Work with senior scientists to design, execute, and interpret results of experiments targeting understanding and improving the electrochemical performance of battery cells and components
  • Effectively document and communicate experimental design, results, and uncertainties within the Cell R&D team and to partner teams
  • Support the design and fabrication of custom tools and fixtures for cell assembly and testing
  • Troubleshoot unexpected results, equipment issues, and cell failures using structured root-cause analysis, and translate findings into actionable changes
  • Stay current with the battery and solid-state literature, and bring relevant methods and findings back to the team
  • Identify opportunities to improve R&D processes for better reproducibility, yield, and safety
  • Follow safety protocols for handling chemicals, cell components and cells, including proper storage and disposal
  • Maintain lab cleanliness and promote environmental health and safety in the daily work environment
  • At the Scientist II level, independently scope and lead experimental campaigns from design through interpretation, pursue new experimental approaches and characterization methods, and mentor junior scientists on lab methods and data practices

Required Qualifications

  • Battery Scientist I: B.S. with 0-2 years of experience in industry, internships, or academic research; or M.S. in Chemistry, Chemical Engineering, Material Science and Engineering, or related field with laboratory-based research work
  • Battery Scientist II: M.S. with 2-4 years of relevant industry experience; or Ph.D. in Chemistry, Chemical Engineering, Material Science and Engineering, or related fields with laboratory-based research work
  • Hands-on experience measuring and analyzing material and component properties - through coursework, thesis or capstone work, internships, or industry roles - and relating structure/property relationships to observed performance
  • Comfort analyzing and visualizing experimental data to draw defensible conclusions
  • Clear technical communication, strong teamwork, and excellent organizational skills
  • A creative approach to problem solving - for example, you redesigned an experiment after the first approach failed, or you tracked down the root cause of an unexpected failure
  • Adaptability to the fast-moving pace of a start-up environment

Desired Qualifications/Skills

  • Industrial experience in battery research or manufacturing
  • Hands-on experience working in a dry room or argon glovebox environment
  • Fabrication and testing of electrochemical cells, including voltammetry, galvanostatic charge-discharge, electrochemical impedance spectroscopy, etc.
  • Proficiency designing experiments and analyzing and visualizing experimental data, including familiarity with Python or MATLAB
  • Examples of independent idea generation and technical communication: publications, patents, conference presentations, or thesis and capstone work where you defined the research question yourself

We expect the person in this role to grow into parts of it. If you meet the required qualifications and are excited about solid-state battery development, we encourage you to apply even if you do not match every desired qualification.

Physical Demands and Working Conditions

  • Work onsite at ION's Beltsville, MD facility; this is a hands-on, collaborative role requiring regular presence
  • Wear personal protective equipment including, but not limited to, a lab coat, gloves, safety glasses, and safety-toe shoes
  • Ability to stand, bend, and move around equipment and lab benches for extended periods

Benefits

The base salary range for this role is $75,000-$90,000 for Battery Scientist I and $90,000-$115,000 for Battery Scientist II, depending on experience and educational background. In addition to base salary and equity incentives, we offer the following company benefits:

  • Medical, dental, vision, disability, and life insurance
  • Equity opportunities in the company
  • Company and floating holidays
  • 17 days of PTO to start, with increase upon tenure
  • Paid parental leave
  • 401(k) plan with a 4% company match beginning after first paycheck
  • Wellness allowance of $1,000 annually

Department: Cell Research and Development

Location: Beltsville, MD

Reports to: Cell R&D Manager

ION Storage Systems is commercializing breakthrough solid-state lithium metal battery technology, based on discoveries made at the University of Maryland, that prioritizes performance, safety, and durability. Built on a scalable, modular, three-dimensional ceramic structure, ION's batteries take a sustainable approach to next-generation energy storage and are ready to meet the demands of an increasingly electrified world across defense and aerospace, consumer electronics, electrified transportation, and renewable energy storage. We are backed by leading venture capital firms including Alsop Louie Partners, Clear Creek Investments, VoLo Earth Ventures, and Toyota Ventures.

We offer an inclusive environment with growth opportunities and encourage work/life balance, because we believe a thriving workspace leads to a thriving company. Our team is made up of driven, creative people who are passionate about their work, and we hope you'll reach out to learn more and join our diverse, collaborative team.

To all recruitment agencies: Ion Storage Systems, Inc. will not accept agency resumes for this role. Please do not forward resumes to our jobs email, or to any Ion Storage Systems employees or any other company email address. Ion Storage Systems is not responsible for any fees related to unsolicited resumes.

Ion Storage Systems, Inc. is proud to be an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, ancestry, pregnancy, sexual orientation, gender identity, national origin, age, citizenship, marital status, disability, or Veteran status.

Eligibility to work in the United States as a U.S. Citizen or U.S. permanent resident is required for consideration.

Pay & benefits

US$75,000–90,000 /yr
Health insurance Dental insurance Vision insurance Life insurance Disability insurance Retirement plan Paid time off Parental leave Wellbeing

About this role

Posted
13 Oct 2026
Updated
13 Oct 2026
Job type
Full time
Workplace
On-site
Sectors
Working hours
UTC-05:00
Experience
Entry-level for Battery Scientist I; Mid-level for Battery Scientist II

About Ion Storage Systems

Company Overview

Name

Ion Storage Systems, a privately held, venture-backed company

Headquarters

Beltsville, MD, United States

Founded

2019

Size

Approximately 150 employees in recent years (source: linkedin.com, manufacturingdive.com)

What They Do

Ion Storage Systems specializes in the development and manufacturing of next-generation solid-state lithium-metal batteries, leveraging a patented three-dimensional ceramic architecture that replaces conventional liquid-electrolyte lithium-ion designs (source: maryland.gov, ionstoragesystems.com). Their technology targets a broad range of markets including defense and aerospace, consumer electronics, electrified transportation, medical devices, and grid or stationary storage applications (source: linkedin.com, ionstoragesystems.com). Ion’s batteries are designed to be safer, lighter, and capable of supporting tighter packing densities, making them especially suitable for compact, high-performance devices such as military wearables, portable electronics, and electric vehicles (source: linkedin.com). The company’s platform is built on a scalable, modular, three-dimensional ceramic structure and includes a first-of-its-kind prototyping line for solid-state cells and anodes, emphasizing safety, durability, and form-factor flexibility (source: ionstoragesystems.com).

Projects & Track Record

Ion Storage Systems has progressed from a university spinoff to pilot-scale manufacturing and early commercialization. Its Beltsville pilot production line, known as "Megapede," has a capacity of 1 MWh per year with plans to scale up to 10 MWh annually (source: manufacturingdive.com). The company produced its first multi-layer ceramic solid-state battery cell on a semi-automated production line in March 2025 at its Beltsville facility (source: ionstoragesystems.com). In August 2025, Ion launched "Cornerstone," its first commercial generation of solid-state battery technology, which began shipping to leading consumer electronics companies (source: umd.edu). The company is also collaborating with the U.S. Army to domestically produce conformal wearable batteries for field electronics such as radios, with the pilot line expected to produce 100,000 military batteries annually (source: manufacturingdive.com, maryland.gov).

Recent Developments

Over the past two years, Ion Storage Systems has undergone significant funding and scaling activities. In July 2024, the company completed a later-stage venture capital round, followed by a debt financing event in November 2024 (source: pitchbook.com). In May 2025, Ion announced the acquisition of a scalable pilot sintering furnace to accelerate production capabilities (source: ionstoragesystems.com). August 2025 marked the first commercial shipments of its Cornerstone solid-state batteries to consumer electronics customers (source: umd.edu). In June 2026, TEDCO invested $2 million in the company through its Venture Funds program, while the Maryland governor’s office announced an $11 million state investment to support Ion’s advanced manufacturing and innovation efforts (source: ionstoragesystems.com, maryland.gov).

Working There

Ion Storage Systems offers a range of technical roles primarily based at its Beltsville, Maryland facility, including positions in battery science, materials science, automation, manufacturing engineering, data engineering, systems administration, and cell performance/testing (source: ionstoragesystems.com, linkedin.com). The company emphasizes onsite, hands-on collaboration within lab and manufacturing environments, with many roles requiring physical presence at the Beltsville site (source: ionstoragesystems.com, ionstoragesystems.com). Employee benefits include monthly company breakfasts, parental leave, a $1,000 annual wellness allowance, a 401(k) plan with a 4% company match starting after the first paycheck, 17 days of paid time off to start, floating holidays, stock options, and comprehensive medical, dental, vision, disability, and life insurance coverage (source: ionstoragesystems.com).

See how you’re connected

See your contacts at Ion Storage Systems on LinkedIn and tap your network when applying.

View connections

More energy storage jobs like this

Battery Scientist I or II
Ion Storage Systems · US$75,000–90,000/yr