Home / Govorci

Govorci

 30222255_1299893363488100_3470933234206900224_n

Michel Zupančič je študent fizike na 2. stopnji. Trenutno na Fakulteti za matematiko in fiziko končuje magistrsko nalogo. Na FPGA čipu izdeluje zelo natančen merilnik časa (TDC), ki se uporablja v medicini, jedrski fiziki … Ob tem pa so njegova velika ljubezen baterije oziroma elektro-kemije, in kot študent sodeluje pri raziskavah na Kemijskem institutu in sicer v skupini pod vodstvom Roberta Dominka. jenju celic in se na splošno učil stvari o elektrokemiji

V zadnjem času doživljamo kar velik napredek na področju baterij. Do kam se litiji ionska baterije še lahko razvijejo?

Ločiti je treba med napredkom baterijskih celic in napredkom baterijskih sklopov. V zadnjih letih so ogromno napredovali sklopi, ne pa same celice. Nekaj let nazaj se je pojavil NMC katodni material, ki je trenutni state-of-the-art .. To je zadnji prispevek kemije k zmogljivosti baterij. V zadnjem času pa se je izboljševala tehnologija, sinteza materialov, sestava celic in podobno. Na ta račun so celice postale boljše. Največji napredek, ki se vidi pri električnih avtomobilih, je pa predvsem inženiring baterijskih sklopov. Zaradi boljšega inženiringa uspejo v isti prostor stlačiti večje število celic. Pri Renaultu nova 52 kWh baterija zasede enako prostora kot prva 22 kWh. Seveda se energetska gostota v celicah medtem ni kaj dosti povečala. Drugi razlog pa je padanje cen baterij, tako da so tudi stroški izdelave avtomobila nižji in tovarne si tako lahko privoščijo večje število celic. Torej je za napredek električnih avtomobilov zaslužen predvsem inženiring in drastično padanje cen baterijskih celic. Sama kemija pri tem ni odigrala kakšne vidnejše vloge.

Torej se litij ionske baterije počasi bližajo svoji maksimalni izkoriščenosti. Kaj pa drugi materiali, ki bi lahko ponudili več energetske gostote ali pa nižje stroške izdeleve pri enaki gostoti?

Kot alternativa Li-ionu strokovnjaki po celem svetu raziskujejo morje različnih materialov. Vsaka skupina raziskuje nekaj drugega, vendar za zdaj brez resnih rezutatov. Zdi se mi, da se nobenemu niti ne sanja, kaj bi lahko zamenjalo Li-ionske baterije. Dejstvo je, da je Li-ion že na meji zmogljivosti, in raziskovalci iščejo čisto nove pristope, tako na strani anode (druge kovine poleg litija; natrij, magnezij, aluminij …) kot katode. Znebiti se hočemo odvisnosti od kobalta in niklja, tako da NMC bo prej kot slej vzel slovo. Laboratorij Kemijskega inštituta je recimo precej aktiven na litij-žveplo (Li-S) sistemu. Obljublja višjo kapaciteto in poceni katode iz lahko dostopnega žvepla. Problem je, ker stvar še vedno nimamo dobrih rezultatov in ker še vedno ne razumemo, kaj se zares dogaja v celici. Čez N ciklov, se stvar spremeni v totalno packarijo. Ob tem pa je problem je tudi varnost .. Poskusne celice, ki so se vžgale in eksplodirale pri 60°C .. S tem ko gremo nazaj na kovinski litij, se seveda spet pojavi stari problem dendritov. V raziskovalni dejavnosti je zelo težko napovedati, kdaj bo neka stvar pripravljena. Mogoče ne bo nikoli in medtem odkrijemo nekaj čisto novega. Jaz mislim da se bomo še kar nekaj časa vozili na Li-ion. Po mojem mnenju bodo Li-ionske baterije prevladovale še najmanj desetletje, če ne več! Mogoče nam končno uspe narediti “solid state” baterije, se pravi s trdnim elektrolitom. Ampak v osnovi bo to še vedno Li-ion, samo z izboljšano kapaciteto in varnostjo.

 BÖCK Harald(1)

Harald BÖCK was born in Lower Austria in 1958. He received the Dipl. Ing. (FH) degree in electrical engineering from the University of Applied Sience in 2002.

After working more than 35 years in the telecommunication industry as a hardware and software design engineer he joined the Municipal Department 33 Public Lighting in 2011.

2017 he resumed their executive functions in the electromobility team. He is responsible for all electromobility activities in Vienna, especially for the rollout of public charging infrastructure. Hi is a member of the electromobility working group at FSV.

·       Vienna is the best place to live in the world. What is the role of well-organized public transport, cycling areas and e-mobility in this respect?


Internationality, safety, affordable and high-quality living standards have contributed to this title in consecutive years.
Most remarkable is the cheap, frequent and fast public transport. Viennese pay 365 EUR for a yearly transport ticket, which allows access to all buses, trams and metros.
Most of the city is accessible within 30 minutes and metros are running 24 hours on the weekends.
Vienna has developed a well thought traffic concept: evoid (individual motorized traffic), improve (efficiency) and shift (from individual to public transport).
The concept is based on the smart city framework, our Urban development Plan STEP2025, the eMobility Strategy and finally the eCarsharing Strategy.

·        What are the biggest challenges for Vienna over the next few years in e-mobility?

Nevertheless, combatting climate change is not finished there, since traffic is still one of the major contributors to CO2 emissions in Austria.
In order to work towards the further decarbonization of transport the city of Vienna is looking into unlocking more mobility services for its citizens.
The the biggest challenges are striking against E-Mobility preconceptions, like: far too high initial cost, reach (especially with air condition on), no public/private charging infrastructure, …
One can attack this prejudices by renting electric cars. Vienna has plans to tender an E-Crasharing fleet.   

 Christina Bu, Norwegian EV Association

Biography Christina Bu (NO), NORWEGIAN EV ASSOCIATION

Christina Bu, born 1980, is head of “Norsk elbilforening” (the Norwegian EV Association), a role she has had for five years. Earlier she worked as a political adviser within mobility and environmental issues. Christina has a BA in political science from the University of Oslo and Pontifical Catholic University of Chile and a MA in Society, Science and Technology Studies from the University of Oslo and Maastricht University. As an expert on electric mobility Christina is frequently meeting with OEMs and advising politicians and governmental bodies from different countries. She has been a Keynote speaker at conferences across the globe. With an EV market share close to 50 % Norway is leading the way.

The Norwegian EV Association is an NGO and consumer organization that has been fast growing and now has 30 employees and over 75.000 members – EV owners from all over the country. This makes it the worlds’ largest EV owner organization. The organization plays an important role both nationally and internationally when it comes to promoting the shift to electric mobility, and work in collaboration with governmental bodies, industry and other organizations.

 Sveinung_Andre_Kvalø_portrett_1200x1600(1)

Sveinung André Kvalø is one of Norway’s leading experts on electric mobility policies. In the City of Oslo he has the responsibility for emobility, car sharing and residential parking in the Department of Transportation at the City Hall. He has been a member of the Norwegian climate negotiations team under the UNFCCC, as lead negotiator on future carbon markets. He has also worked with national climate policies, with a special responsibility for electric mobility policies and new transport technologies.

 Maarten-Stol
Maarten Stol biography:
Maarten has a background in theoretical AI, with a broad focus ranging from nature inspired problem solving methods to formal logic and automated reasoning. At BrainCreators Maarten is responsible for keeping the development team up to date with the latest scientific research in machine learning and providing technical support to the sales team. In addition, Maarten is a supervisor to Bachelor and Master internship projects at BrainCreators and a keynote speaker and evangelist for AI in Practice.
Baerte de Brey is the Chief International Officer within ElaadNL. ElaadNL is the knowledge and innovation centre in the field of (smart) charging infrastructure and is owned by the Dutch TSO and DSOs.
Responsible for analyzing the long-term effect of electric mobility on the electricity grids, Baerte helps building a sustainable business case around this transition. This includes vehicle2grids, EV-storage and research on cyber security. He graduated from Leiden University in 2001 with a law degree and received a MBA from Nyenrode Business University in 2006.
As an expert for the International Energy Agency and the European Commission he sometimes reviews collective European programs concerning EV interoperability and smart charging. He is regularly consulted by decision makers in the automotive industry and governments, most recently by California and British Columbia. In his spare time he is an elected member of the Provincial Council of Utrecht