Dalian Institute of Chemical Physics,Chinese Academy of Sciences
Welcome Opportunities Education Campus Map Contact 中文
About Research People International Facilities
Location: Home >> News & Events >> Upcoming Events
  English.dicp.cas.cn    Posted:2017-10-03
Lecture: Safety of Li-Batteries

Time: October 3rd, 2017, 9:00-10:00 am
Venue: Conference Room on First Floor in No.1 Energy Building
Lecturer: Prof. Dr. habil. Jürgen Garche,CEO of FCBAT Ulm

Abstract:

The total energy of a Li-ion cell amounted to ca. 3,250 kJ/kg. About 1/4 of this energy is related to electrochemical energy (chemical energy convertible into electrical energy via discharge) and 3/4 to thermal energy (chemical energy convertible only into thermal energy at abuse conditions).

The main safety related events are overcharge, external heating, external and internal short circuits, and mechanical deformations of the cell/battery case.

These unpredictable events may leads to a temperature increase and at T>120°C by internal chemical processes (SEI layer breakup, anode-electrolyte reaction) with gas development (internal pressure increase) to cell container rupture at predetermined breaking points. Gas and electrolyte will escape through the rupture holes into the environment and, eventually, inflame by an external ignition source.

A further temperature increase till about 200°C triggers high rate chemical reactions (cathode decomposition with O2 development, O2 reaction with the electrolyte) leading to a very rapid temperature rise (thermal runaway) followed by flames caused by reaching the self-ignition temperature of the electrolyte (~ 450°C) and possibly explosions.

The specific occurrence of most of the above described safety related events, will be discussed in this presentation.

Introduction:

Education

- PhD in Theoretical Electrochemistry, 1970, TU Dresden

- Habilitation in Applied Electrochemistry, 1980, TU Dresden

Academia

- Professsor Electrochemistry, Ulm University, Germany

- Visiting professor at Shandong Univerity,

- Dalian Institute of Chemical Physics,

- Sapienza University Roma (Italy)

Business

1970 - 1990

Senior researcher, university lecturer at TU Dresden

1991 - 2004

Head of the Electrochemical Energy Storage and Energy Conversion Division of the Center for Solar Energy and Hydrogen Research (ZSW – http://www.zsw-bw.de) in Ulm, 2004.

2004 - now

CEO of FCBAT Ulm (Fuel Cell and Battery Consulting – http://www.fcbat.eu)

Publications

- 308 papers, 10 patents, 3 books

- Editor-in-Chief, Encyclopedia Electrochemical Power Sources, ELSEVIER, 5 volumes, 2009

Editorial board member

- Journal of Power Sources

- Fuel Cells - From Fundamentals to Systems

- International Journal of Hydrogen Energy

- Electrochemical Power Sources

Awards

- α-β  PbO2 Society Price (1998)

- Award of the German Gas Industry (2000)

- European Fuel Cell-Award “Schoenbein Medal” (2003)

- Fuel Cell Excellence Award (2006)

R&D interests

- Lead-Acid, Li-Ion, Redox-Flow Batteries

- PEMFC and DMFCs

- Supercaps

- Photoelectrochemistry 

Contact: DONG Yan
Phone: 84379797

DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES

Welcome
Opportunities
Education

Campus Map
Contact
中文

Links
Old Website

Dalian Institute of
Chemical Physics, CAS
457 Zhongshan Road
Dalian, China 116023

Copyright © 1999-2017. Dalian Institute of Chemical Physics, Chinese Academy of Sciences. All rights reserved.