Knowledge HUB
Insights from battery experts
Explore the latest trends, research papers, blog posts and more. Join us as we cover hot topics, debate the future of tech and share trending stories.
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Insights
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Article
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April 10, 2024
TWAICE Vision Summit 2024: AI is the key to a sustainable battery life cycle
Daniela Rittmeier explains how artificial intelligence and data-driven models can be used to achieve a sustainable battery lifecycle
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April 10, 2024
TWAICE Vision Summit 2024: Availability of grid scale batteries
Quentin Scrimshire analyzes the differences between ERCOT and U.K. grid availability rates
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April 10, 2024
TWAICE Vision Summit 2024: Battery software is the key to sustainable future
TWAICE founders Stephan Rohr and Michael Baumann explain how battery analytics software can contribute to sustainable development
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April 10, 2024
TWAICE Vision Summit 2024: The influence of cell designs on battery aging
Sophie Solchenbach shows that lithium plating is caused by electrolyte motion in one of their research cells.
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Article
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April 10, 2024
TWAICE Vision Summit 2024: Battery health and EVs
Richard Mohr explains the importance of battery health in evaluating electric vehicle performance
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Article
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April 10, 2024
TWAICE Vision Summit 2024: Rapid Operational Validation Initiative
Susan Babinec explains the U.S. Department of Energy's plan to accelerate the transition from laboratory to mass development
Whitepaper
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January 20, 2022
Streamlining e-bus warranty discussions
The automotive sector’s transition to green mobility is challenging the bus operators across the world. That was the case of a major operator of electric buses in the Netherlands, who reached out to ViriCiti and TWAICE regarding our Battery Health Solution to integrate data-driven decision making focused on batteries, to avoid timely and costly warranty discussions.
Whitepaper
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June 3, 2020
The Power of Signalling
What is the potential impact of Battery Health Reports (BHR) on remarketing success of the battery electric vehicle (BEV)? Besides age and mileage, driver profile has a major impact on how long a battery lasts. In the absence of documentation of how a driver has treated the battery, residual value formation remains below its full potential.
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Research Paper
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September 17, 2024
Modeling Particle Versus SEI Cracking in Lithium-Ion Battery Degradation
This work identifies and systematically compares three different SEI interaction theories, and applies them to experimental degradation data from a commercial lithium-ion cell. It shows that SEI delamination without any cracking of the active particles, and SEI microcracking, where cycling only affects SEI growth during the cycle itself, are both unlikely candidates.
Research Paper
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June 11, 2024
Insights from EPRI's BESS failure incident database
This report is intended to address the failure mode analysis gap by developing a classification system that is practical for both technical and non-technical stakeholders.
Research Paper
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March 11, 2024
Non-destructive electrode potential and open-circuit voltage aging estimation for lithium-ion batteries
In this publication we extend a state-of-the-art electrode open circuit potential model for blend electrodes and inhomogeneous lithiation. We introduce a bi-level optimization algorithm to estimate the open parameters of the electrode model using measurements conducted on the full-cell level with state-of-the-art testing equipment.
Research Paper
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December 8, 2023
Mechanistic cycle aging model for the open-circuit voltage curve of lithium-ion batteries
Cycling lithium-ion batteries causes capacity fade, but also changes the shape of the open-circuit voltage (OCV) curve, due to loss of active material (LAM) and loss of lithium inventory (LLI). To model this change, we recently proposed a novel empirical calendar aging model that is parameterized on component states of health (s) instead of capacity fade only.
Research Paper
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June 9, 2023
Mechanistic calendar aging model for lithium-ion batteries
In this work we present a novel mechanistic calendar aging model for a commercial lithium-ion cell with NCA cathode and silicon-graphite anode. The mechanistic calendar aging model is a semi-empirical aging model that is parameterized on component states of health, instead of capacity.
Research Paper
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April 12, 2023
Measurement Approaches for Thermal Impedance Spectroscopy of Li-ion Batteries
Battery performance, lifetime and safety are highly dependent on temperature. With the recent high demand for power capabilities, heat management has become increasingly relevant.