Liquid metal batteries are being developed primarily for battery energy storage system (BESS) systems but may find future applications in electric vehicles (EVs) and wearables and portable devices. The first commercial BESS using a liquid metal … [Read more...]
What comprises an EV powertrain?
An EV powertrain includes a battery pack, motor drive controller and power electronics, traction motor, and more. But that description only applies to battery electric vehicles (BEVs). For mild and strong hybrid vehicles (HEVs) and plug-in hybrid … [Read more...]
What role do wide bandgap semiconductors play in EVs?
Wide bandgap (WBG) semiconductors silicon carbide (SiC) and gallium nitride (GaN) are used for a variety of applications in EVs. Weight and size are even more important in EVs than in conventional internal combustion engine (ICE) vehicles. SiC and … [Read more...]
Comparing EV battery and fuel cell energy density
Battery electric vehicles (BEV) and fuel cell electric vehicles (FCEV) are two “zero-emissions” vehicles. Although none achieve zero emissions, as discussed below. The amount of energy stored in a battery or hydrogen tank for a FCEV can be measured … [Read more...]
LiuGong brings battery electrics to North America
LiuGong exhibited its newest battery electric wheel loader for the North American market at Conexpo 2023. The 856H-E MAX wheel loader is part of the company’s range of electric construction vehicles available worldwide. “The industry is talking about … [Read more...]
Mid-size excavator is a step up
Volvo Construction Equipment has been offering electric machines for several years, including small and medium-size wheel loaders, mini excavators, and now an electric road asphalt compactor. Earlier this year, the company also announced it was … [Read more...]
High-efficiency hydraulics bolsters battery electric machines
Komatsu showcased several hydraulic-electric machines and related battery technology at Conexpo 2023. The goal, said company officials, is to develop the technology and equipment to help customers reduce their carbon footprint and plan for … [Read more...]
New prototypes focus on sustainability
Visitors to Conexpo 2023 had the opportunity to view Caterpillar’s concepts of total site solutions for energy transition, including four battery-electric machine prototypes on display at the company’s Sustainability Hub. The Caterpillar 950 GC … [Read more...]