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Welcome to the Electrochemistry Laboratory (LEC)

The Electrochemistry Laboratory (LEC), established 1988, is part of the Energy and Environment Research Division (ENE) at the Paul Scherrer Institute. The laboratory comprises two sections and 5 interacting groups that deal with almost all aspects of electrochemical energy storage and conversion.
PSI’s Electrochemistry Laboratory is Switzerland’s largest Center for Electrochemical Research.

LEC on TV and Radio

Swiss Radio: SRF Regionaljournal Aargau Solothurn, May 8, 2017, 17:30h
Paul Scherrer Institut entwickelt Akku der Zukunft
Swiss TV: Kassensturz, January 17, 2017, 21:10h
Knopfbatterien im Test: Enorme Preisunterschiede
Swiss TV: Einstein, November 26, 2015, 21:07h
Die Renaissance der Batterie
Swiss TV: Einstein, November 21, 2013, 21:07h
Mobilität ohne Treibhausgase
Wasserstofftankstellen für die Schweiz?

PSI Electrochemistry Symposium

35th Swiss Electrochemistry Symposium
Topic: The Role of Batteries in Future Energy Systems
May 22, 2019
Kultur & Kongresshaus Aarau, Schlossplatz 9, 5000 Aarau, Switzerland
Program and Registration: tbd in January 2019

34th PSI Electrochemistry Symposium
Topic: Pushing Limits of Characterization in Electrochemistry
April 25, 2018
Paul Scherrer Institut, Villigen PSI
view our past program 2018 ...

See more about our past Symposia:
33rd PSI Electrochemistry Symposium
Topic: From the Lab to the Market
May 10, 2017
Paul Scherrer Institut, Villigen PSI
view our past program 2017 ...

32nd PSI Electrochemistry Symposium
Topic: Electrolytes - The Underestimated Player in Electrochemical Processes
April 27, 2016
Paul Scherrer Institut, Villigen PSI
view our past program 2016 ...

31st PSI Electrochemistry Symposium
Topic: Electrochemical Energy Storage: A Key for Future Energy Systems
May 06, 2015
Paul Scherrer Institut, Villigen PSI
view our past program 2015 ...


Brennstoffzellen zum Durchbruch verhelfen

Media Release June, 29, 2018

Strom on demand

Media Release March, 8, 2018

Nanomaterial hilft Sonnenenergie zu speichern: effizient und kostengünstig

Media Release July 17, 2017

Next Generation Catalysts for Polymer Electrolyte Fuel Cells

Media Release June 21, 2017

Quarzpulver für den Akku der Zukunft

Media Release May 8, 2017

So halten Akkus länger und laden schneller

Media Release July 4, 2016

Wasserkanäle machen Brennstoffzellen effizienter

Media Release September 23, 2015

The key to charging a lithium-ion battery rapidly

Media Release September 08, 2015

Das Kompetenzzentrum Speicherung zieht nach einem Jahr Bilanz

Media Release November 14, 2014

Ice in fuel cells imaged directly for the first time

Media Release June 16, 2014

Fuel cell know-how from the Paul Scherrer Institute at the core of the SBB minibar

Media Release April 4, 2014

The Paul Scherrer Institute runs two of the energy competence centres (SCCERs) of the Swiss government

Media Release December 12, 2013

Fuel cell membrane from the Paul Scherrer Institute better than its commercial counterparts

Media Release November 28, 2013

Zukünftige Computerchips mit "elektronischem Blutkreislauf"

Media Release November 14, 2013

Five times less platinum: fuel cells could become economically more attractive thanks to novel aerogel catalyst.

Media Release August 08, 2013

An ultrathin energy storage device made of carbon

Media Release April 26, 2013

Memory effect now also found in lithium-ion batteries

Media Release April 14, 2013

Annual Report

Annual Report 2017

View in Issuu.com

Scientific Highlight

June, 2013

Dosing Differential Electrochemical Mass Spectrometry (D-DEMS) for Li-O2 Batteries

The high-energy rechargeable Li-O2 battery has been subject to intensive research worldwide during the past years. The Li-O2 cell mainly comprises a negative (e.g. Li metal) and positive (e.g. porous carbon) electrode separated by an electronically insulating, but Li+ conducting electrolyte layer. In order to study the cell chemistry, a differential electrochemical mass spectrometry setup based on a set of valves, a pressure sensor and a quadrupole mass spectrometer has been developed. On galvanostatic discharge, oxygen dissolves in the non-aqueous electrolyte, reduces at the porous carbon surface to form mainly Li2O2, as determined from the linear decrease in the oxygen pressure corresponding to a ratio of 2e- per O2 consumed. On charge, the discharge product is oxidized, the lithium ions return to the negative electrode and oxygen gas evolves. Although the oxygen evolution rate initially reaches 2e-/O2, it rapidly drops as the cell over-potential increases. In addition, the evolution of CO2 at 4.3 V vs Li+/Li clearly demonstrates the existence of parasitic side reactions. The D-DEMS, as successfully developed at PSI, is a key tool for analyzing the O2 gas usage, without which conclusions on the cell rechargeability can hardly be drawn.

Presentation slides
Publication: ECL Annual Report 2012

Further publications: Lithium batteries - Phase Boundaries

Header Picture:

Neutron imaging at the NEUTRA beam line of the water distribution in a commercial-size fuel cell for the AutoStack CORE project (http://autostack.zsw-bw.de).