Deep battery knowledge

20 January 2022

Economizing with battery analytics

A lot has happened in the world of electric buses over the past year. Many new projects have been announced or started. The early adopters – those that started introducing electric buses into their fleets four or five years ago – can offer helpful insights to the future for many. Over the past couple of months, ViriCiti and TWAICE have worked closely with such an early adopter on how to integrate data-driven decision making – focusing on batteries – to avoid timely and costly warranty discussions.

17 January 2022

Three e-mobility trends 2022

The goal to cease production of combustion engines by 2030 means that the importance of renewable energies, energy storage systems and e-mobility to sustainability and environmental awareness continues to grow. Where are we right now and what trends are emerging for 2022?

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.

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.

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.

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.