The German government is expected to approve new incentives for corporate purchases of electric vehicles on Wednesday in a bid to recharge the struggling market for battery-powered cars, according to several people familiar with the situation. The initiative is part of Germany’s overall plan to reduce emissions that are believed to cause global warming and will be contained in a package of measures presented in cabinet by the economics and environment ministries, these people said. One aspect of Germany’s strategy to cut emissions is to put at least one million electric vehicles on German roads by 2020 in order to enable the auto industry to meet European Union demands to reduce CO2 emissions to 95 grams per kilometer. “This is the most ambitious target world-wide,” said Matthias Wissmann, head of the Association of German Automobile Manufacturers. “We’ll only achieve it if we put a lot more electric vehicles on the road.”