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Advanced Battery Consultancy That Powers Progress
Based in Mölndal, Sweden, Unovolt AB leverages extensive industry experience to guide clients through complex battery system challenges with tailored consultancy and measurable impact.
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Alelion - Senior System Engineer

Started as a system engineer in 2016 for Alelion, which made low voltage battery systems for forklifts.

My focus was on system design and strategies leading towards providing 800 V battery systems

with a lot of new considerations for the company on how to address electrical isolation, functional safety, liquid cooling techniques, cell performance and simulation of drive cycles, software test
strategies, documentation, etc. Also, a completey new module concept needed to be invented to meet the cost goals of the company and to fulfill many requirements on voltage, capacity, cell type and
cooling/heating methods.
Several battery projects were made with both international and swedish customers:
Water cooled 666 V, 74 kWh battery for yard trucks. 2 or 3 batteries per vehicle.
Convection cooled, electrical heated 410 V 45 kWh battery for special vehicles. 2-4 batteries per vehicle.
Water cooled/heated, electrical heated 120 V 60 kW battery for heavy forklift. 3-4 batteries per vehicle.
Water cooled/heated, electrical heated 90 V 44 kW battery for hybrid heavy vehicle.
Convection cooled, electrical heated 90 V 44 kWh battery (ePTO) for lorry crane.
Convection cooled, electrical heated 90 V 10 kWh battery (ePTO) for lorry crane.
Experiments and pre-development projects consisted of:
Electrical heating. (Patent.)
Prototype of an immersion cooled battery system.
Thermal modelling of a prismatic battery cell.
SOC and SOH algorithms. (Patent contributor.)
IoT device connected to CAN bus.
Modelling and simulation of complete battery system.
Conducted abusive and environmental tests:
UN 38.3 tests
IEC 62619 test
Functional safety analysis and documentation for ISO 13489.
Design analysis for UL 2580.
Design and implementation of test equipment for module cycling.
BMS system design and requirement elicitation.
(...and lots more.)
Highlighted Project

Green Energy Transition Advisory

Provided strategic insights and development plans supporting sustainable battery technologies.
Case Study
Key Project

Battery Manufacturing Process Improvement

Delivered comprehensive design to manufacturing consulting for efficient, scalable battery systems
Case Study
Our Services

Partnering to advance your business via expert design and development consultancy

Hi!

I am Peter Tammpere and have 35 years of experience from product design and development from aerospace, telecom and battery systems. Luckily, I have been hired by companies with strong technological ambitions and goals, which have evolved me into having both wide and deep understanding of the whole design process from concept to manufacturing.

Motivated by the green transition of society, my focus has been on lithium-ion battery systems since 2016. My acquired experience from designing, simulating and testing several battery systems since then resulted in me starting my own independent consultancy company in 2022 called Unovolt AB.

Please feel free to reach out to get in contact for further discussions!

/ Peter
  • Product Design & Development
  • Simulation & Testing
  • Strategic Consultancy
  • Manufacturing Support

Contact Us

Feel free to get in touch for enquiries, project discussions or collaborations
  • Hulelycksgatan 73, SE-431 63 Mölndal, SWEDEN
  • peter.tammpere@unovolt.se
  • Weekdays: 08:00-17:00
  • peter.tammpere@unovolt.se
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