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Making new electric vehicle batteries without rare metals

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Making new electric vehicle batteries without rare metals

MIT chemists have developed a battery cathode made of organic materials that could reduce the electric vehicle industry’s reliance on rare metals. So in this article, we will talk about making new electric vehicle batteries without rare metals.

Making new electric vehicle batteries without rare metals

Many electric vehicles run on batteries that contain cobalt. Cobalt is a metal that has high financial, environmental, and social costs. Making new electric vehicle batteries without rare metals is the subject about which we’re going to talk about.

According to MIT News, MIT researchers have now designed a battery material that could provide a more sustainable way to power electric vehicles. This new lithium-ion battery has an organic-based cathode instead of cobalt or nickel, which are often used in lithium-ion batteries.

This research group showed that this material, which is produced at a much lower cost than cobalt-containing batteries, can conduct electric current at the same rate as cobalt batteries. According to the researchers, the new battery has comparable storage capacity and can be charged faster than cobalt batteries.

“I believe this material can have a big impact because it works really well,” said Mircea Dincă, a professor of energy at MIT. This material is now competitive with current technologies and can be effective in reducing the costs and environmental problems associated with the extraction of metals currently used in batteries.

Read More: Weaving nanofibers out of carbon dioxide

Cobalt Substitutes

Most electric cars use lithium-ion batteries. These batteries are charged when lithium ions flow from a positively charged electrode called the cathode to a negatively charged electrode called the anode. In most lithium-ion batteries, the cathode contains cobalt, and this metal provides stability and high energy density.

However, cobalt has significant disadvantages. It is a rare metal and its price can fluctuate wildly. Cobalt mining creates hazardous working conditions and produces toxic waste that pollutes the land, air, and water around the mines.

Dinka said: “Cobalt batteries can store a lot of energy and have all the features that people care about in terms of performance, but they have the problems of not being widely available, their cost always fluctuating, and as they move relatively Much higher than electric vehicles in the consumer market, they will certainly become more expensive.

Due to the many disadvantages of cobalt, a lot of research has been done to develop alternative materials. One of these materials is “lithium-iron-phosphate” (LFP), which some car manufacturers have started using in electric cars. Although LFP is practical, it has only about half the energy density of cobalt and nickel batteries.

Another attractive option is organic materials, but most of these materials have not yet been able to provide the conductivity, storage capacity, and lifespan of the batteries they contain. Due to their low conductivity, such materials usually have to be mixed with binders such as polymers that help them maintain a conductive network. These connectors, which make up at least 50% of the total material, lower the storage capacity of the battery.

About six years ago, Dinka Labs started working on a Lamborghini-funded project to develop an organic battery that could be used to power electric cars. Dinka and his students worked on porous materials that were partly organic and partly inorganic. They realized that a completely organic material they made might be a strong conductor.

This material consists of many layers of bis-tetraaminobenzoquinone (TAQ), which is a small organic molecule consisting of three fused hexagonal rings. These layers can extend outward in any direction and form a structure similar to Within the molecules, there are chemical groups called “Quinone” which are the reservoir of electrons, and “Amine” which help the materials to form strong hydrogen bonds.

These hydrogen bonds make the material very stable and very insoluble. This insolubility is important because it prevents substances from dissolving in the battery electrolyte. This is what some of the battery’s organic materials do and, as a result, extend its life.

“One of the main ways organics degrade is that they simply dissolve in the battery’s electrolyte, travel to the other side of the battery, and create a short circuit,” Dinka said. If we make the substances completely insoluble, this process will not happen. In this way, we can have more than 2000 charge cycles with minimal degradation.

Strong Performance

Tests conducted on this material showed that its conductivity and storage capacity are comparable to traditional batteries containing cobalt. Also, batteries with TAQ cathodes charge and discharge faster than conventional batteries. This feature can increase the charging speed of electric vehicles.

To stabilize the organic materials and increase their ability to stick to the battery’s current-collecting agent, which is made of copper or aluminum, the researchers added materials such as cellulose and rubber. These materials make up less than one-tenth of the total cathode composite. Therefore, they do not significantly reduce the storage capacity of the battery. Also, these materials increase the lifespan of the battery cathode by preventing the cathode from cracking when lithium ions flow into it when the battery is charging.
The raw materials required to make this type of cathode are a quinone precursor and an amine precursor, which are currently commercially available and produced in large quantities. Researchers estimate that the cost of materials required to assemble these organic batteries can be about one-third to one-half of the cost of cobalt batteries.

Dinka Labs plans to continue developing alternative battery materials and is considering replacing lithium with sodium or magnesium, which are cheaper and more abundant than lithium.

This research was published in “ACS Central Science” magazine.

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Unveiling of OpenAI new artificial intelligence capabilities

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OpenAI

OpenAI claims that its free GPT-4o model can talk, laugh, sing, and see like a human. The company is also releasing a desktop version of ChatGPT’s large language model.

 Unveiling of OpenAI new artificial intelligence capabilities

Yesterday, OpenAI introduced the GPT-4o artificial intelligence model, which is a completely new model of the company’s artificial intelligence, which according to OpenAI is a step closer to a much more natural human-computer interaction.
This new model accepts any combination of text, audio, and image as input and can produce output in all three formats. It can also detect emotions, allow the user to interrupt it mid-speech, and respond almost as quickly as a human during a conversation.
In the live broadcast of the introduction of this new model, Meera Moratti, Chief Technology Officer of OpenAI, said: “The special thing about GPT-4o is that GPT-4 level intelligence has been made available to everyone, including our free users. This is the first time we’ve taken a big step forward in ease of use.
During the unveiling of the model, OpenAI demonstrated the GPT-4o, which translates live between English and Italian, with its intuitive ability to help a researcher solve a linear equation on paper in an instant, just by listening to The breaths of an OpenAI executive give him advice on deep breathing.
The letter “o” in the name of the GPT-4o model stands for the word “Omni”, which is a reference to the multifaceted capabilities of this model.
OpenAI said that GPT-4o is trained with text, images, and audio, meaning all input and output is processed by a neural network. This differs from the company’s previous models, including the GPT-3.5 and GPT-4, which allowed users to ask questions just by speaking, but then converted the speech to text. This would cause tone and emotion to be lost and interactions to slow down.
OpenAI will make this new model available for free to everyone, including ChatGPT users, over the next few weeks, and will also initially release a desktop version of ChatGPT for Apple computers (Mac) for users who have purchased a subscription, starting today. They will have access to it. The introduction of the new OpenAI model took place one day before the Google I/O event, which is the company’s annual developer conference.
OpenAI
It should be noted that shortly after OpenAI introduced GPT-4o, Google also presented a version of its artificial intelligence known as Gemini with similar capabilities.
While the GPT-4 model excelled at tasks related to image and text analysis, the GPT-4o model integrates speech processing and expands its range of capabilities.

Natural human-computer interaction

According to OpenAI, the GPT-4o model is a step towards a much more natural human-computer interaction that accepts any combination of text, audio, and image as input and produces any combination of text, audio and image.
This model can respond to voice inputs in less than 232 milliseconds, with an average speed of 320 milliseconds, which is similar to the response time of humans in a conversation.
This model matches the performance of the GPT-4 Turbo model on English text and code with a significant improvement in converting text to non-English languages while being much faster and 50% cheaper via application programming interface (API). The GPT-4o model is especially better in visual and audio understanding compared to existing models.

What exactly does the introduction of this model mean for users?

The GPT-4o model significantly enhances the experience of ChatGPT, OpenAI’s wildly popular AI chatbot. Users can now interact with ChatGPT like a personal assistant, ask it questions and even hang it up wherever they want.
Additionally, as mentioned, OpenAI is introducing a desktop version of ChatGPT along with a revamped user interface.
“We recognize the increasing complexity of these models, but our goal is to make the interaction experience more intuitive and seamless,” Moratti emphasized. We want users to focus on working with GPT instead of being distracted by the UI. Our new model can reason text, audio, and video in real-time. This model is versatile, fun to work with, and a step toward a much more natural form of human-computer interaction, and even human-computer-computer interaction.
The GPT-4o model has also been extensively reviewed by more than 70 experts in areas such as social psychology, bias and fairness, and misinformation to identify risks introduced or enhanced by the newly added methods. OpenAI has used these learnings to develop safety interventions to improve the safety of interacting with GPT-4o. The members of the OpenAI team demonstrated their audio skills during the public presentation of this new model. A researcher named Mark Chen emphasized its ability to gauge emotions and noted its adaptability to user interruptions.
Chen demonstrated the model’s versatility by requesting a bedtime story in a variety of tones, from dramatic to robotic, and even had it read to him. As mentioned, this new model is available for free to all ChatGPT users. Until now, GPT-4 class models were only available to people who paid a monthly subscription.
“This is important to us because we want to make great AI tools available to everyone,” said OpenAI CEO Sam Altman.

Strong market for generative artificial intelligence

OpenAI is leading the way in productive AI alongside Microsoft and Google, as companies across sectors rush to integrate AI-powered chatbots into their services to stay competitive.
For example, Anthropic, a competitor of OpenAI, recently unveiled its first corporate proposal to Apple to provide a free program for iPhones.
“We recognize that GPT-4o audio presentations present new risks,” OpenAI said in a statement. Today we’re publicly releasing text and image inputs and text outputs, and in the coming weeks and months, we’ll be working on the technical infrastructure, post-training usability, and security necessary to release other methods. For example, at startup, audio outputs are limited to a set of predefined sounds and adhere to our existing security policies. We will share more details about the full range of GPT-4o methods in a future system.
OpenAI
According to the report, the generative AI market saw a staggering $29.1 billion in investment across nearly 700 deals in 2023, up more than 260 percent from the previous year. Predictions indicate that the yield of this market will exceed one trillion dollars in the next decade. However, there are concerns about the rapid deployment of untested services by academics and ethicists who are troubled by the technology’s potential to perpetuate prejudice.
Since launching in November 2022, ChatGPT’s chatbot has broken records as the fastest-growing user base in history, with nearly 100 million weekly active users. OpenAI reports that more than 92% of the world’s top 500 companies use it.
At the presentation event last night, Moratti answered some questions from the audience and when he spoke in fluent Italian and the artificial intelligence translated his words into English, the hall was filled with excitement.
There is more. This means the next time you take a selfie, OpenAI’s artificial intelligence can assess your exact emotions. All you have to do is select a selfie and ask ChatGPT to tell you how you feel.
It should be said that OpenAI employees were so happy that ChatGPT asked them why they were so happy!

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Samsung S95B OLED TV review

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Samsung S95B OLED TV
The S95B TV is Samsung’s serious attempt to enter the OLED TV market after a decade of hiatus; But can it take back the OLED throne from LG?

Samsung S95B OLED TV review

What can be placed in a container with a depth of 4 mm? For example, 40 sheets of paper or 5 bank cards; But to think that Samsung has successfully packed a large 4K OLED panel into a depth of less than 4mm that can produce more than 2000 nits of brightness is amazing. Join me as I review the Samsung S95B TV.

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MacBook Air M3 review; Lovely, powerful and economical

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MacBook Air M3 review
The MacBook Air M3, with all its performance improvements, adds to the value and economic justification of the MacBook Air M1, rather than being an ideal purchase.

MacBook Air M3 review; Lovely, powerful and economical

If you are looking for a compact, well-made and high-quality laptop that can be used in daily and light use, the MacBook Air M3 review is not for you; So close the preceding article, visit the Zomit products section and choose one of the stores to buy MacBook Air M1 ; But if you, like me, are excited to read about the developments in the world of hardware and are curious to know about the performance of the M3 chip in the Dell MacBook Air 2024 , then stay with Zoomit.

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