Coreshell · 16 hours ago
Senior Battery Engineer
San Leandro, CA
Full-time
Onsite
Mid, Senior Level
$115K/yr - $140K/yr
2+ years expCoreshell is focused on transforming the global automotive market with their innovative metallurgical Silicon anode technology. The Senior Battery Engineer will lead process development for pouch cells, conduct failure mode analysis, and study degradation mechanisms to enhance battery performance and reliability.
EnergyElectric VehicleIndustrialManufacturingRenewable EnergyBatteryNanotechnology
Responsibilities
Lead Formation process development for 60Ah pouch cells, translating lab-scale insights into manufacturable recipes
Conduct Process FMEA to identify potential failure modes in the formation workflow—spanning electrolyte wetting, temperature control, current response, degassing, and cell sealing
Quantify process risk severity, occurrence, and detection to prioritize control actions and process improvements
Apply Fault Tree Analysis (FTA) to trace system-level cell performance issues (e.g., plating, voltage hysteresis drift, impedance rise) to specific process, material, or equipment causes
Lead cross-functional root-cause investigations integrating electrochemical, mechanical, and process data
Develop and execute statistically robust DOE plans to study the effects of formation variables on cell lifetime and degradation
Define qualification metrics including first-cycle efficiency, voltage-shift behavior, impedance evolution, and plating onset thresholds
Automate test data pipelines to extract diagnostic fingerprints for qualification and failure prediction
Identify and model key degradation pathways (Li plating, SEI/CEI growth, transition-metal dissolution, gas evolution, etc.) as a function of formation and cycling history
Perform electrochemical characterizations and post-mortem correlation to quantify reaction- and diffusion-limited losses
Establish predictive links between formation signatures and field lifetime performance using statistical reliability models
Support design-of-experiments to isolate electrochemical vs. mechanical degradation contributions under thermal, C-rate, and voltage stress tests
Qualification
Required
B.S. degree or equivalent in Chemistry, Chemical Engineering, Materials Science OR an experience in a similarly relevant field with 2+ years of industrial experience
Able to safely work in a manufacturing setting
Strong verbal and written communication skills
Self-starter with an ability to operate on his/her own initiative
Creative problem solver and able to juggle multiple projects at any given time
Preferred
Previous experience in battery cell development, process development, or manufacturing environment preferred
Benefits
Dental
Vision
Healthcare
401(k) benefits
Company
Coreshell
Battery Capacity Unlocked
11-50 employees
H1B Sponsorship
Coreshell has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (2)
2023 (1)
Funding
Current Stage
Early StageTotal Funding
$41.21MKey Investors
Ferroglobe,Zeon VenturesTrousdale VenturesNational Science Foundation
2025-03-18Series A· $24M
2022-03-02Series A· $12M
2021-04-04Grant· $0.98M
Leadership Team
Jonathan Tan
CEO + Co Founder
Recent News
Cleantech Open
2026-01-02
2025-11-19
2025-10-22
Company data provided by crunchbase