Deep battery knowledge
We want to share our knowledge about batteries, digital twins, and predictive analytics.
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ARTICLES
Featured
3 June 2020
The Power of Signalling
Autovista Group, TÜV Rheinland and TWAICE have teamed up to explore the potential impact of Battery Health Reports (BHR) on remarketing success of the battery electric vehicle (BEV) in a new whitepaper. 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.
6 August 2021
Battery simulation models
Mercedes-Benz is just the latest in a long line of companies committing to an all-electric product line-up. Central to this transition in the mobility space is the lithium-ion battery. Outside the automotive industry, these batteries are already a key technology. But while the battery is a powerful enabler, it can also be an Achilles’ heel. We talked to TWAICE battery modeling engineer Goku, who explains the most pressing issues.
22 March 2021
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.
11 February 2021
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.
15 December 2020
E-Bus Fleet Management
They may not catch your eye like the Tesla in the neighbor’s driveway, but increasingly more public transport vehicles are going electric. In 2019, more than 1600 electric buses were introduced in the EU, 187 of which in Germany – and the trend is on the up.
18 November 2020
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.
12 September 2019
Future of Mobility
Batteries are controversially discussed. Nevertheless, most manufacturers and legislators rely on battery electric vehicles – the right decision.
26 August 2019
Battery Technology
Batteries are highly complex electrochemical systems with different cell formats and chemistries being used. The processes inside the battery also deserve particular attention.
15 August 2019
EV Market Dynamics
The electrification of mobility is accelerating quickly and turning the automotive industry and other major industries upside down. With electrification the focus shifts away from the engine towards the batteries.
RESEARCH PAPERS
Featured
23 November 2020
Impedance Research Paper
Impedance is an important characteristic of lithium-ion batteries since it directly influences their power capability. However, battery impedance is highly dependent on the operating condition and increases over the lifetime of the battery, due to degradation of the latter. Continuous tracking of the impedance can hence provide meaningful insights into the aging status of a battery.
2 September 2021
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.
2 September 2021
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).
23 November 2020
Impedance Research Paper
Impedance is an important characteristic of lithium-ion batteries since it directly influences their power capability. However, battery impedance is highly dependent on the operating condition and increases over the lifetime of the battery, due to degradation of the latter. Continuous tracking of the impedance can hence provide meaningful insights into the aging status of a battery.
