All "Qi" standard chargers will work with the N5 with varying degrees of success. They all will generally charge up to a distance of ~3-4mm from coil to coil so they will usually charge thru cases with no problem although there may be a slight degradation in charge rate. I have used several different Qi chargers - the Google Orb, the Owlpad car charger, the LG WCP 300 and the Metrans MWT03. They all charged my N4 'case on' with no trouble although the N4 did seem to charge slightly quicker without the case on. I even mounted the Metrans inside of my desk just under the laminate surface and it charged the N4 fine thru the laminate and TPU case. The Orb was easily the best of lot and charged the fastest, the Owlpad was probably the worst but it was used while driving with the phone generally being used for GPS, music streaming etc and under those conditions, it barely could maintain charge with screen on. With the phone off, it charged fine.
I just got my N5 today and tried it with all of my chargers and they all worked fine, if anything the N5 is less picky than the N4 about placement.