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 2022 battery dark lights

TWAICE Vision Conference Report

TWAICE hosted a conference about the importance of software in a battery-driven future. Speakers from leading companies in the electric vehicle, energy and battery industries discussed its challenges. A conference report now highlights the main findings of the event.
electric car charging at night

Three e-mobility trends 2022

The importance of e-mobility to sustainability and environmental awareness continues to grow. Some of the trends that will be emerging for this year include battery-drive at the cutting edge, image change for batteries, and second life batteries enabled by software analytics.
Solar panel energy storage

Predictive battery analytics in the energy sector

Battery storage is a fundamental part of the energy sector. Batteries, however, are complex systems. Deriving the maximum profit from them without incurring any additional risk is the overarching goal of most energy operators. This is where battery analytics can help.
Electric Bus charging optimization

E-Bus Battery Optimization

The e-bus market is already moving fast in 2021. Established bus manufacturers are setting the pace. E-bus manufacturers are currently facing a plethora of questions and uncertainties. Major challenges include the development of the highly complex batteries, warranty management, sustainable fleet management and the issue of battery reuse and recycling.
Battery Automotive electric vehicle recalls

Electric Vehicle Recalls

Numerous recent recalls showed how much risk is associated with the most important competent of the emission-free mobility. The battery is a highly complex piece of technology that must be tightly analyzed not only during the development but also during operation.
traffic future of mobility

Future of Mobility

Even though batteries are a controversial topic, most manufacturers and legislators rely on battery electric vehicles because of its advantages over other alternatives. This article examines why batteries are the future of mobility and play a key role for renewable energies.
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.
TWAICE battery electric vehicle

Evaluation of transmission losses of various battery electric vehicles

Transmission losses in battery electric vehicles have compared to internal combustion engine powertrains a larger share in the total energy consumption and play therefore a major role. In this paper, three simulation models of the Institute of Automotive Engineering are presented.
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.