Daniel Membreno Email & Phone Number

Us

Meet with customers to define custom energy storage testing systems requirements. Perform electrical system validation on test equipment and corresponding data analysis prior to customer delivery

Santa Clara, California, Us

Responsible for managing materials characterization service business unit. Workload was 70% technical execution and 30% business operations. Completed over 600 materials characterization reports in the past 2 years of operations for over 50 unique customers using 35 contract labs. Surpassed 2021 revenue goal per employee by 194% of target value. Optimized operations to handle 50% more clients and double the contract labs

Santa Clara, California, Us

Actively marketed science as a service (SaaS) and acted as the company representative on initial contact with prospective customers. Increased customer base by 50% in conjunction with marketing team. Authored templates to improve reporting quality and increase profit margins. Guided and organized subcontract analysts to improve operational efficiency. Continued to add additional materials analysis techniques and subcontractors

Santa Clara, California, Us

Maintained the day-to-day operations for the materials analysis business unit. Point of contact for customers to translate technical needs into analysis plans. Coordinated sample measurement timeline with subcontract research labs

Responsible for the battery module design including: CAD drawings, PCB layout, battery management system (BMS) chip set selection, component selection, sourcing parts and serving as the in-house battery expert. Created the system design for a new generation of battery modules with integrated cooling. Used Design Spark and Autocad Fusion 360 for the PCB layout and mechanical design as well as the thermal modeling. Assembled the company’s first high discharge long lifetime prototype battery pack.

Developed sodium ion electrolytes for sodium ion batteries that improved battery power by 30% using design of experiments (DOE) and statistical analysis with Minitab. Designed battery lifetime models that accurately predict changes in internal resistance and coulombic efficiency over time. Assembled and tested batteries through lab scale and pilot scale production. Determined root cause of failure for experimental battery chemistries using materials analysis and electrical test data

Menlo Park, California, Us

Lead the technical development of measuring the electrical properties of meta dielectric materials. Ensured timely accurate measurements for the company. Designed and maintained high throughput data analysis using excel and JMP.

Berkeley, Ca, Us

Performed electrochemical characterization of high voltage transition metal oxide cathodes and silicon anodes for plug in hybrid and other electric vehicles applications. Developed computer code for high throughput data analysis of electrochemical testing, including: hybrid pulse power characterization (HPPC), galvanostatic cycling and electrochemical impedance spectroscopy (EIS). Working on the applied battery research for transportation (ABR) project under Dr. Robert Kostecki and Dr. Vincent Battaglia in the Environmental Energy Technology Division

Los Angeles, Ca, Us

Focused on electrochemical characterization of energy storage materials including 3D lithium ion batteries, carbon nanotube (CNT) supercapacitors and niobium pentoxide pseudocapacitors. Specialized in electrochemical impedance spectroscopy and computer programming for data analysis. Hands on experience with fabricating and testing electrochemical materials inside argon filled gloveboxesSynthesized and characterized quasi-solid electrolyte made by sol-gel encapsulation of ionic liquid. Encapsulated ionic liquids are contained in a three dimensional network of silica that preserves their ionic conductivity unlike gelation methods. The silica network was characterized by nitrogen gas adsorption after supercritical drying with CO2.Fabricated and characterized supercapacitors with CNT electrodes, deposited by electrophoretic deposition, with encapsulated ionic liquid as the electrolyte. Built custom testing fixtures and gained experience with conductive epoxies, machining, packaging and gloveboxes. Years of practice with probe station performing impedance on micron sized rods for three dimensional micro battery electrodes. Developed an electrochemical technique to detect and characterize pinholes in conformal non-planar solid electrolytes by using redox couples and fundamental electrochemistry. Designed and wrote a visual basic program to process the large volume of data produced from these measurements.

Arlington, Va, Us

Learned cleanroom basics and gained hands on experience with spin coating positive and negative photoresists, plasma cleaning and ion milling. Developed and tested methods for integrating energy storage by electrodeposition on micron dimensions in a process compatible with semiconductor fabrication.

Davis, California, Us

Maintained an ultra-high vacuum (UHV) system and learned basic UHV samplepreparation and manipulation for XPS, STM and LEEM experiments.

Ph.D Materials Science And Engineering, Electrochemistry

M.S Materials Science And Engineering, Electrochemistry

B.S Applied Physcis, Materials Science And Engineering