Honda Motor Co. Ltd. will unveil an electric-vehicle concept at next month’s Los Angeles auto show.

The auto maker also is set to take the wraps off its plug-in hybrid platform at the show, revealing the first big update to its HEV technology since the introduction of its mild-hybrid Integrated Motor Assist system a decade ago.

Honda CEO Takanobu Ito, who will be on hand at the L.A. show, announced over the summer the auto maker would debut a battery EV in the U.S. in 2012, a change in stance for Honda, which previously was lukewarm on the technology.

Honda’s plug-in HEV system for midsize and larger models is set for a 2012 launch.