article thumbnail

Graphene-based supercapacitor offers energy density comparable to NiMH battery, but with rapid charge and discharge

Green Car Congress

These values are comparable to those of NiMH batteries, the researchers note, but the new supercapacitor offers the ability to be charged or discharged within seconds or minutes. Wh/kg, which is comparable to that of a modern nickel metal hydride battery used in a hybrid vehicle.

NiMH 356
article thumbnail

Toyota: Prius PHEV Fuel Economy Not Yet Available

Green Car Congress

They are very early “converted” prototypes using double nickel-metal hydride batteries. This is due to the added weight of a large battery that, once depleted by pure-electric drive, will contribute nothing until it is plugged in and re-charged.

article thumbnail

Tier 1 HELLA evaluating PowerGenix NiZn batteries for 48V mild hybrid vehicles

Green Car Congress

NiZn offers superior energy and power density compared to lead-acid and Nickel-Metal Hydride (NiMH) and avoids the high costs and safety issues associated with Lithium-ion (Li-ion) batteries. Marc Nalbach of HELLA. Source: PowerGenix. Click to enlarge.

article thumbnail

Road Test: 2023 Lexus UX 250h Premium FWD

Clean Fleet Report

When on the freeway, take a glance at the center round gauge that shows whether the hybrid system is in the charging, eco or power mode. Learning how to modulate the accelerator pedal to stay in the eco and charge range will produce the best efficiency. Your numbers may differ. This feature-rich system is explained here.

Lexus 77
article thumbnail

National Research Council Study Finds That Available Technologies Can Result in Significant Fuel Savings for Passenger Vehicles Over the Next 15 Years, But at Higher Purchase Prices for Consumers

Green Car Congress

Variable compression ratio, camless valve trains, and homogeneous-charge compression ignition were all given careful consideration during the course of this study. Valve event modulation can also reduce fuel consumption and cause a slight increase in performance, the report said. Assessment of Technologies”.

Purchase 210
article thumbnail

ARPA-E awarding $36M to 22 projects in RANGE program for transformative EV storage

Green Car Congress

ARPA-E’s RANGE program seeks to improve EV driving range and reduce vehicle costs by re-envisioning the total EV battery system, rather than working to increase the energy density of individual battery cells. EnZinc’s porous, sponge-like zinc component prevents battery failure and enables high-power charge and discharge. 4,000,000.

article thumbnail

Toyota Unveils Dedicated Hybrid Concept, Plan for Prius Family; Expands Fuel Cell Vehicle Demonstration Program in the US

Green Car Congress

A century after the invention of the automobile, we must re-invent it with powertrains that significantly reduce or eliminate the use of conventional petroleum fuels. Like hydrogen fuel cells, battery-electrics will require the creation of infrastructure for re-charging, on the go. And then there is range.

Prius 218