Connect with us

Hi, what are you looking for?


Clean Transport

Novel Economically Efficient Modular Battery Concept For Electric Vehicles Unveiled

An interesting-looking concept for an electric city bus — one that would already be economically efficient, even when current battery costs are taken into consideration — was recently unveiled by the Karlsruhe Institute of Technology (KIT). The e-city bus design is intended to serve as a demonstrator for a new modular battery concept. It will be presented in detail at the upcoming IAA International Motor Show in Frankfurt.

The primary components of the new demonstrator are: the novel new modular battery system with lithium-ion cells made in Germany, a drive-train with a high-torque electric motor, an advanced battery management system, and a high-voltage network.

Modular batteries (orange) can be integrated easily in the free space of the vehicle. Image Credit: KIT

Modular batteries (orange) can be integrated easily in the free space of the vehicle.
Image Credit: KIT

The press release from the Karlsruhe Institute of Technology has more:

The battery system consists of flat modules that can be stacked to reach the dimensions and electric characteristics desired. Various spaces in the different types of vehicles can be used for accommodating the energy storage system. The battery management system and drive control developed for the KIT demonstrator allow for driving operation taking into account the current performance limits of the system and its components.

“Energy efficiency of an electric bus can be increased by an adequate selection of components already,” states Martin Gießler, head of the demonstrator development project. “Of course, an anticipatory operation and recuperation strategy plays an important role.”

“By means of recuperation, braking energy is converted into electrical energy again. The drive consists of a low-torque engine supplying a high driving torque for the vehicle. The engine is connected directly with the differential gear of the rear axle. It decreases the gear reduction to be implemented and, hence, ensures a high efficiency of torque transmission.”

The new e-city bus demonstrator development project was funded primarily by the Federal Ministry of Economics and Technology.

Appreciate CleanTechnica’s originality and cleantech news coverage? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.

Don't want to miss a cleantech story? Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.
Written By

James Ayre's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy.


You May Also Like

Clean Power

Optimized Light Paths, High-throughput Laser Scribing and the Use of Established Coating Processes Paves the Way to Commercial Viability – Publication in Nature Energy


Scientists at the KIT Energy Center have devised a way to extract lithium from the groundwater used by geothermal facilities in Germany.


A joint study by the highly respected Karlsruhe Institute of Technology and the Fraunhofer Institute for Systems and Innovation Research finds that plug-in hybrid cars...

Clean Power

A new perovskite + CIGS tandem thin-film solar module -- presented by researchers from KIT, ZSW, and the Belgian research institute imec at the...

Copyright © 2021 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.