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Unbelievable Innovation! Stellantis Aims to Use Eggshells to Create Its Own Sustainable Tires

Written by Roberta Souza

Published on 14/02/2025 at 10:54

Science and Technology

Foto: Proauto

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New Patent Proposes Replacing Traditional Materials with Organic Waste to Make Tires More Sustainable

Stellantis is developing an innovative solution to make tire production more sustainable: using eggshells in the rubber composition. The idea, which may seem unusual, has already been registered in a patent submitted to the United States Patent and Trademark Office (USPTO) and published at the end of January this year, according to the Automotive News website.

The proposal involves extracting calcium oxide (CaO) from discarded eggshells to partially replace carbon black and silica – materials traditionally used in tire manufacturing, but that have a significant environmental impact.

Why Use Eggshells in Tires?

The use of eggshells as raw material offers both ecological and technical advantages. Being an abundant and renewable waste, they help reduce waste and prevent tons of organic residue from ending up in landfills.

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Technical Benefits of the New Composition

According to Stellantis, the addition of calcium oxide can bring improvements in tire performance. Among the main benefits noted are:

✔️ Lower Rolling Resistance – can reduce friction by up to 20%, increasing vehicle efficiency.
✔️ Greater Fuel Economy – the company estimates a reduction of up to 3% in energy consumption.
✔️ Better Grip on Wet Surfaces – can contribute to safer driving.

Challenges and Future of the Technology

Carbon black, currently used in tire production, has essential functions such as wear resistance and heat dissipation. However, it is a byproduct of burning hydrocarbons, a highly polluting process.

Stellantis proposes a process for extracting CaO that involves heating the eggshells to temperatures above 900°C, transforming them into a fine powder that can be incorporated into rubber.

Despite the novelty, the economic solutions and the impact of the change on tire durability have not yet been disclosed. If this technology comes to fruition, it could represent a significant advance in reducing pollution caused by the automotive sector.

Do you trust tires made with eggshells? Comment and share this innovation!

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#tecnologia Cascas de ovo composição de pneus pneus Stellantis sustentabildiade

Roberta Souza

Author for the Click Petróleo e Gás portal since 2019, responsible for publishing over 8,000 articles that have garnered millions of views, combining technical expertise, clarity, and engagement to inform and connect readers. A Petroleum Engineer with a postgraduate degree in Industrial Unit Commissioning, I also bring practical experience and background in the agribusiness sector, which broadens my perspective and versatility in producing specialized content. I develop content topics, disseminate job opportunities, and create advertising materials tailored for the industry audience. For content suggestions, job vacancy promotion, or advertising proposals, please contact via email: santizatagpc@gmail.com. We do not accept resumes

Unbelievable Innovation! Stellantis Aims to Use Eggshells to Create Its Own Sustainable Tires

New Patent Proposes Replacing Traditional Materials with Organic Waste to Make Tires More Sustainable

Why Use Eggshells in Tires?

Technical Benefits of the New Composition

Challenges and Future of the Technology

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Unbelievable Innovation! Stellantis Aims to Use Eggshells to Create Its Own Sustainable Tires

New Patent Proposes Replacing Traditional Materials with Organic Waste to Make Tires More Sustainable

Why Use Eggshells in Tires?

Technical Benefits of the New Composition

Challenges and Future of the Technology

Seven world powers including the US, China, and Russia are spending €22 billion on a reactor in the south of France that aims to confine plasma at 150 million degrees Celsius, ten times the temperature of the Sun’s core, using a magnetic field capable of lifting an entire aircraft carrier.

Elon Musk’s internet comes to mobile: Starlink technology connects smartphones without an antenna via satellite, works even without carrier signal, already costs just US$10 extra in the US, and could arrive in Brazil as an included benefit.

While Brazil has been discussing bullet trains for 16 years, China delivers 5 new high-speed lines in 2026, surpasses 50,000 km of HSR, and moves 1 billion passengers in a single year.

With a wingspan of 152 meters, 76 tires, and a capacity to carry 1,270 tons, the Boeing Pelican was the giant “flying ship” that promised to cross oceans close to the water on an invisible air cushion beneath its wings.

While countries spend billions to draw water from the sea, a Nobel-winning scientist creates a container-sized machine that extracts up to 1,000 liters per day from dry air and uses ultrasound to release water in minutes, even in the middle of the desert.

Belgium will sink 23 giant concrete caissons, each weighing 22,000 tons, in the North Sea to build the world’s first artificial energy island 45 km off the coast, forming offshore electrical walls.

New microwave that can replace three appliances hits the market: Sharp launches 3-in-1 model that combines air fryer, convection oven, and heating in 0.9 cubic feet for small kitchens

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