J1718_200811 Measurement of Hydrogen Gas Emission from Battery-Powered Passenger Cars and Light Trucks During Battery Charging

Canceled

11/25/2008

Issuing Committee
Scope
Content
This SAE Recommended Practice describes a procedure for measuring gaseous hydrogen emissions from the aqueous battery system of a battery-powered passenger car or light truck. The purpose of this procedure is to determine what concentrations of hydrogen gas an electric vehicle together with its charger will generate while being charged in a residential garage. Gaseous emissions are measured during a sequence of vehicle tests and laboratory tests that simulate normal and abnormal conditions during operational use. The results of this test may be used to determine whether or not forced air ventilation is required when a particular electric vehicle and its associated battery and charging system are used in a residential garage.
Rationale
Content
This Recommended Practice defines a procedure for measuring gaseous hydrogen emissions from the aqueous battery system of a battery-powered passenger car or light truck. The purpose of this procedure is to determine what concentrations of hydrogen gas an electric vehicle together with its charger will generate while being charged in a residential garage. Hydrogen is generated from lead-acid (Pb/A) batteries (usually VRLA) during charge. Today's use of Pb/A is limited to Neighborhood Electric Vehicles or special military vehicles. J1718 is not relevant to the new fleet of general purpose electric or hybrid electric vehicles that are being developed with advanced battery technology, which are sealed battery systems with a different chemistry that does not produce hydrogen on charge. Pb/A doesn't have sufficiently high energy density or specific energy to be competitive with today's advanced battery technologies that will be used in the new vehicles under development. Furthermore, procedures that address hydrogen safety in fuel cell vehicles are addressed elsewhere.
Meta TagsDetails
DOI
https://doi.org/10.4271/J1718_200811
Pages
12
Citation
SAE International Recommended Practice, Measurement of Hydrogen Gas Emission from Battery-Powered Passenger Cars and Light Trucks During Battery Charging, SAE Standard J1718_200811, Cancelled November 2008, Issued December 1994, https://doi.org/10.4271/J1718_200811.
Additional Details
Publisher
Published
Nov 25, 2008
Product Code
J1718_200811
Content Type
Recommended Practice
Status
Canceled
Language
English

Revisions