Lithium Ion Battery Durability and Europe’s New Mennekes Type 2 Connector


I was hon­ored to mod­er­ate a pan­el last week dur­ing the Advanced Auto­mo­tive Bat­tery Con­fer­ence in Pasade­na, Calif., that fea­tured four speak­ers – Erik Spek of the TÜV SÜD Cana­da bat­tery test­ing firm, Kei­th Wil­son from Soci­ety of Auto­mo­tive Engi­neers, Galen Ressler, Gen­er­al Motors (who has worked on the Chevro­let Volt’s bat­tery pack per­for­mance) and Kevin Konecky of Fisker Auto­mo­tive, who had a lot to say about test­ing li-ion bat­ter­ies under a wide range of ther­mal con­di­tions. Spek talked about lessons learned from nick­el met­al hydride bat­ter­ies used in hybrid elec­tric vehi­cles; Ressler talked about OEM field expe­ri­ence while man­ag­ing a project like the Volt; Konecky described the bat­tery degra­da­tion and dura­bil­i­ty fac­tors that have to be test­ed to make a reli­able elec­tric vehi­cle bat­tery pack.

Kei­th Wil­son, tech­ni­cal project man­ag­er, glob­al ground vehi­cle stan­dards for SAE Inter­na­tion­al, talked about stan­dard­iza­tion issues for charg­ers, which has been a debat­ed issue over whether Japan’s CHAde­MO fast charg­er con­nec­tor stan­dards or the SAE’s more recent com­bo stan­dards (mak­ing Lev­el 1 and Lev­el 2 AC charg­ing and DC fast charg­ing acces­si­ble at the same port) should be adopt­ed by glob­al OEMs. Con­di­tions in Europe changed recent­ly after the Euro­pean com­mis­sion approved the Men­nekes “Type 2” charge con­nec­tor, which was har­mo­nized with the SAE com­bo con­nec­tor. “This means that an OEM can design and man­u­fac­ture their charg­ing sys­tem to work with either the SAE com­bo con­nec­tor for use in the US mar­ket or the Men­nekes’ ‘Type 2’ for use in the Euro­pean mar­ket,” Wil­son wrote to me in a fol­low-up email. – Jon LeSage



    Leave a Reply

    Your email address will not be published. Required field are marked *.