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.

Insights

TWAICE Vision Summit 2024 Daniela Rittmeier

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
TWAICE Vision Summit 2024 Quentin Scrimshire

TWAICE Vision Summit 2024: Availability of grid scale batteries

Quentin Scrimshire analyzes the differences between ERCOT and U.K. grid availability rates
TWAICE Vision Summit 2024 Stephan Rohr and Michael Baumann

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
TWAICE Vision Summit 2024 Sophie Solchenbach

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.
TWAICE Vision Summit 2024 Richard Mohr

TWAICE Vision Summit 2024: Battery health and EVs

Richard Mohr explains the importance of battery health in evaluating electric vehicle performance
TWAICE Vision Summit 2024 Susan Babinec

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
Electric Bus blue charging

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.
electric car driving through tunnel art night

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.
cell testing in the TWAICE battery research center

Modeling capacity fade of li-ion batteries

Aging models are fundamental tools to optimize the application of lithium-ion batteries. In this work, we show that the CAP-method models capacity fade more accurately when applied to dynamic cyclic aging tests with periodically changing mean state-of-charge, depth-of-discharge, ambient temperature and discharge rates for a commercial NCA cell with a silicon-doped graphite anode.
TWAICE testing simulation, Batteriemodell-Bibliothek

Combining EIS and time-domain data

This work proposes a method to combine time-domain and frequency-domain measurement data for parameterization of RC elements by exploiting the full potential of the distribution of relaxation times (DRT).
lithium ion battery labs module, batteriemodell|

Quantifiability of Cell-to-Cell Variations

Motivated by the question of why impedance variation is consistently reported to be higher than the variation of other parameters, we show that measuring inherent parameter variations caused by production tolerances is superimposed by effects of an imperfect measurement setup.
impedance of lithium-ion batteries research paper

Impedance Research Paper

Continuous impedance monitoring provides significant insights into the aging status of a battery. However, the on-line determination of battery impedance parameter for its low-frequency part is a challenging task. This paper provides an algorithm for its determination, which features a novel approach to quantifying the impedance caused by diffusion processes at low frequencies.