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Institute for Applied Materials - Energy Storage Systems (IAM-ESS)

Prof. Dr. Helmut Ehrenberg
Secretary: Frau Almut Kriese

Hermann-von-Helmholtz-Platz 1

D-76344 Eggenstein-Leopoldshafen

Tel.: +49 721 608-28501
Fax: +49 721 608-28521

E-Mail:

office-ess∂iam kit edu

Web:

www.iam.kit.edu/ess/

NEWS

Nature Journal Publication
Nature Journal Publication

“Probing a battery electrolyte drop with ambient pressure photoelectron spectroscopy”

Operando ambient pressure photoelectron spectroscopy in realistic battery environments is a key development towards probing the functionality of the electrode/electrolyte interface in lithium-ion batteries that is not possible with conventional photoelectron spectroscopy. Here, we present the ambient pressure photoelectron spectroscopy characterization of a model electrolyte based on 1M bis(trifluoromethane)sulfonimide lithium salt in propylene carbonate. Our article provides insights into the liquid components of a lithium ion battery and the necessity to stabilize the liquid phases in ambient pressure photoelectron spectroscopy measurements.

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nature
Nature Journal Publication

The development of low-cost and long-lasting all-climate cathode materials for sodium ion batteries is one of the key issues for the success of large-scale energy storage. Here, we synthesize a NASICON-type tuneable Na4Fe3(PO4)2(P2O7)/C nanocomposite which shows both excellent rate performance and outstanding cycling stability over more than 4400 cycles. Its air stability and all-climate properties are investigated, and its potential as the sodium host in full cells has been studied.

NASICON-Type Air-Stable and All-Climate Cathode for Sodium-Ion Batteries with Low Cost and High-Power Density

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polis
IAM-ESS ist Teil des KIT Exzellenzclusters POLIS

In der gemeinsam von KIT und Universität Ulm getragenen Initiative „Energy Storage Beyond Lithium“ arbeiten Wissenschaftlerinnen und Wissenschaftler aus Elektrochemie, Materialwissenschaften, theoretischer Modellierung und Ingenieurwissenschaften in einem multidisziplinären Ansatz zusammen.

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AEM
Microstructural Evolution of Li-Rich Layered Oxides

In article published in Advanced Energy Materials, No 1803094, Weibo Hua, Björn Schwarz, Michael Knapp, Sylvio Indris and co-workers describe the transformation processes (from spinel to rock-salt to layered structure) observed during synthesis of Li-rich Co-free layered oxides that are used as cathode materials for Li-ion batteries, on a single particle. These processes are driven by incorporation of Li and O into the Li-free precursor.
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News Archive

PCCP hot articles
Ausgewählt für die Hot-Article-Collection 2018 von PCCP

Der Artikel "Observation of Electrochemically Active Fe3+/Fe4+ in LiCo0.8Fe0.2MnO4 by in situ Mössbauer Spectroscopy and X-Ray Absorption Spectroscopy" ist ausgewählt für die Hot-Article-Collection 2018 von PCCP.
Dieser Artikel beschreibt das Umschalten von Fe zu hohen Oxidationszuständen in oxidischen Spinell-Materialien durch elektrochemische De-Interkalation. Dies ermöglicht das Herstellen von Hochenergie-Li-Ionen-Batterien ohne den Einsatz von kostspieligen/toxischen Elementen.
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festbatt
IAM-ESS Partner im Kompetenzcluster ‚FestBatt‘

Das IAM-ESS ist innerhalb des KIT Partner des deutschlandweiten Kompetenzclusters ‚Festbatt‘ zur Entwicklung und Produktion neuartiger Festkörperbatterien. Innerhalb dieses Clusters sollen in insgesamt fünf Plattformen und verteilt über 14 wissenschaftliche Einrichtungen innerhalb Deutschlands Festelektrolyte und Festkörperbatterien erforscht und der Grundstein für die Entwicklung von Prototypen gelegt werden. Mehr…

celest
IAM-ESS is part of the CELEST collaboration

The KIT, the Ulm University (UUlm) and the Centre for Solar Energy and Hydrogen Research (ZSW) Baden-Württemberg aim at widening and strengthening their collaboration in the area of Electrochemical Energy Storage. The three institutions will co-operate on interdisciplinary research & development in this field ranging from basic research to technical applications and on the qualification of students. more