Crew Member, Cashing Assistant, Research Assistant

Shivam Chopra

*******@*******.***.**

EDUCATION

UNIVERSITY OF BRITISH COLUMBIA (Okanagan)

Master of Applied Science, Mechanical Engineering May’22 - Present

• Graduate Research Assistant in Advanced Materials for Energy Storage Lab (IP1) INDIAN INSTITUTE OF TECHNOLOGY (IIT) Roorkee

Bachelor of Technology, Engineering Physics Aug’16 – Jul’20

• Graduated with 1st division (CGPA: 7.97/10)

WORK EXPERIENCE & PROJECTS

Cashier Assistant – Costco Wholesale (Kelowna) Oct’22 – Apr’23

• Assisting customers regarding products, checking out and memberships.

• Assisting staff in managing product inventory, returns and exchanges. Crew Member – McDonald (Kelowna) May’22 – Sept’23

• Assisting line cooks in producing various menu items (burgers, fries, nuggets etc.)

• Assisting customers in order taking and crew with assembling and finalizing drinks. Graduate Research Assistant for Solid State Batteries May’22 – Present Supervisor: Dr. Jian Liu @ University of British Columbia (Okanagan)

• Working on fabrication and analysis of solid-state lithium-ion batteries.

• Exploring the possible lithium metal anodes for solid-state lithium-ion batteries. Graduate Engineer Trainee for Materials Development Aug’21 – Nov’21 Supervisor: Hemant Charaya @ Log 9 Materials, Pune

• Worked on fabrication and analysis of graphene-based electrodes for super-capacitors.

• Explored the implementation of graphene-based electrodes for lithium-ion-based cells. Research Associate for Energy Storage Fabrication & Analysis Sept’20 – May’21 Supervisor: Dr. Naga Phani Aetukuri @ Indian Institute of Science (IISc), Bangalore

• Assembled electrochemical cells & organic electrochemical gate transistors and characterized using electrochemical impedance spectroscopy, transfer characterization & conductivity.

• Worked on the fabrication of diketopyrrolopyrrole-based lithium-oxygen cells and their characterization using the differential electrochemical mass spectrometer

• Scripted a python model for batch-wise equivalent electric circuit fitting to extract volumetric film capacitances, returning satisfactory values of chemical capacitances.

• Worked on chronoamperometry to calculate precise columbic efficiency for determining state-of- charge of commercially used batteries.

Bachelors’ Thesis Project on Perovskite Solar Cells Oct’19 - May’20 Supervisor: Dr. Soumitra Satapathi @ Indian Institute of Technology (IIT), Roorkee [Report Link]

• Performed a literature survey on perovskite solar cells (PSCs) and developed a mathematical model using MATLAB to simulate the magnetic field effect on PSCs.

• Performed electrochemical impedance spectroscopy on PSCs under varying illumination and voltage biases under the influence of a stable magnetic field with the help of a Helmholtz coil.

• Further analysis of the dynamics of cells’ internal parameters like diffusion capacitance & dynamic resistance was performed using equivalent electric circuits.

• A reduced charge-carrier mobility in the high-frequency domain was observed, which, coupled with increasing potential bias, inferred a behavior similar to a high-pass filter. Internship Project on Sodium-ion Energy Storage May’19 – Jul’19 Supervisor: Dr. Sarika Kelkar @ KPIT Technologies, Pune [Report Link]

• Assembled a diverse set of sodium-ion half-cells with varying electrode thickness, doping and electrolyte concentration.

• Performed electrochemical impedance spectroscopy to converge on the best combination & correlated the effects of ageing in pristine and cycled cells with its internal parameters.

• Correlated capacity fades with cycle life using gradient descent algorithm on early cycle life data, without prior knowledge of degradation mechanism.

• Developed a multi-variable linear regression model using python for predicting the cycle life of cells with varying discharge capacities & energies. Formula Student Electric Vehicle Engineer Feb’17 – Feb’20 Supervisor: Dr. Arup Kumar Das @ Indian Institute of Technology (IIT), Roorkee [Report Link]

• Designed & assembled shutdown & discharge circuits to safely disable & isolate the motor controller from the accumulator as per the FSAE rules.

• Designed & assembled battery management system of accumulator to monitor voltage, temperature and passively balancing state-of-charge of lithium-ion cells having combined energy of 7.1KWh.

• Worked on spi & uart communication protocols for different sensors used in our project.

• Worked on permanent magnet synchronous motor using the associated motor controller. ACCOMPLISHMENTS

Formula Green: Secured 3rd overall & 1st in Acceleration event. 2020 A nationwide competition for formula electric vehicles was built by various colleges. Smart India Hackathon: Qualified in the final round of software 2019 A nationwide initiative to inculcate product innovation by solving some pressing problems. Srishti: Secured 1st in mechanical design for universal arm manipulator robot 2018 Annual technical festival of IIT Roorkee.

TECHNICAL SKILLS & RELEVANT COURSES

Software Packages:

Embedded C Python Autodesk Fusion 360 Arduino MATLAB Altium Simulink MBed Compiler LabView LTSpice

Relevant Courses:

IIT ROORKEE: Advanced Characterization Techniques, Electrochemical Impedance Spectroscopy (NPTEL), Semiconductor Devices, Design & Analysis of Algorithms, Numerical Analysis & Computational Physics.

UBCO: Machine Learning for Engineers, MultiCriteria Design of Experiments, Material Science Characterization

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