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lightweighting

3 stories tagged lightweighting on EV Digest.

Battery

Toray's new resin film for anode current collectors could lighten EV batteries

Japanese chemical company Toray Industries has engineered a novel resin film designed to replace the copper foil currently used as anode current collectors in lithium-ion batteries. This innovation promises to reduce battery weight significantly while meeting crucial criteria for oxidation and reduction resistance, adhesion, mechanical strength, and thermal stability. Adoption of this film could lead to lighter, more efficient EV battery packs.

July 31, 2026·Charged EVs·Toray
Models

Novel Materials Could Pave the Way for Sustainable EVs

The construction of a new prototype race car is showcasing innovative materials like plant fibers and volcanic rock. These advancements could reduce the weight and environmental impact of future electric vehicles. While the article focuses on a race car, such material science innovations are crucial for advancing EV design and sustainability.

July 8, 2026·Ars Technica - Cars
Battery

Automakers Shift from Copper to Aluminum Wiring for EV Weight and Cost Savings

Major automotive manufacturers like Ferrari and BMW are increasingly adopting aluminum wiring in their electric vehicles, moving away from traditional copper. This strategic pivot, following a trend set by Tesla and Chinese automakers, aims to reduce both vehicle weight and production costs—critical factors in EV manufacturing.

June 30, 2026·Automotive News (Google News)·BMW
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