Introduction:
Wow, this invention may completely overturn the rules of the game in the global new energy industry! On February 12, 2025, the international top journal Nature published a revolutionary breakthrough. The team of Peng Huisheng/Gao Yue from Fudan University in China invented a new lithium battery "rejuvenation" technology, breaking the traditional design principles of lithium batteries for more than 30 years, which can extend the battery life by more than 10 times! An ordinary lithium iron phosphate battery still maintains 96% of its capacity after 11,818 charge and discharge cycles! You know, the lithium batteries currently on the market are used for 1000-2000 times.
What does this mean? A Tesla used to need to replace its battery every 6-8 years, but now it can be driven for 60 years without having to replace it! Your iPhone can be charged and discharged 10,000 times without losing power!
The inspiration for battery repair technology comes from human therapy
How was this miraculous discovery born?
Just like treating human diseases, we focus on repairing the core issues of batteries while protecting their healthy parts, "explained Gao Yue, a researcher at Fudan University.
Originally, the main reason for the "aging" of lithium batteries was the loss of lithium ions. Just as the lack of a certain nutrient in the human body can lead to illness, batteries can also experience a decline in performance due to malnutrition. The breakthrough idea of the team is: Can we replenish the lost lithium ions in the battery like giving an injection to a patient?
AI helps break through key battery balancing technologies
However, finding the appropriate "injection" is not an easy task. This carrier molecule must simultaneously meet almost stringent physical and chemical property requirements:
- Having appropriate electrochemical activity and decomposition voltage range.
- Suitable solubility in electrolyte.
- Has excellent air stability and chemical stability.
- Appropriate acidity, alkalinity, and reaction kinetics.
- The decomposition products must be safe and harmless.
- Most importantly, it should be cheap and easy to scale up production.
Artificial intelligence discovers key materials
With no precedent to follow, the research team turned to artificial intelligence. They digitized the molecular properties and used machine learning to find answers from a huge amount of organic chemistry, electrochemistry and materials engineering data.
The hard work paid off! After 4 years of hard work, they finally found the ideal solution: CF3SO2Li (lithium trifluoromethanesulfonate). This molecule is like a miniature transporter, carrying lithium electrons at one end and safely discharging them as gas at the other end after the transportation is completed.
The experimental results are shocking!
In the experiment, the battery that received this "precision treatment" still had performance close to the factory level even after 12000 to 60000 charge and discharge cycles. This not only extends battery life, but also provides a feasible technical solution to solve the problem of large-scale waste battery pollution.
Even more exciting is that this technology has opened up entirely new possibilities:
Implemented a lithium free cathode battery system with a voltage of 3.0V and an energy density of up to 1192 Wh/kg.
Developed an organic sulfurized polyacrylonitrile cathode pouch battery with an energy density of 388 Wh/kg.
Revolutionary Impact
This breakthrough will completely change the rules of the game in the new energy industry:
It will significantly reduce the cost of using electric vehicles, significantly reduce the environmental pollution caused by battery scrapping, and open up new ideas for the design of new batteries; the most exciting thing is that the cost of this technology is very considerable - it is expected to account for less than 10% of the total battery cost, which means it has the potential for large-scale commercial use!
As researcher Gao Yue said: Whether it is to extend battery life or prevent large-scale abandonment and environmental pollution, this "precision treatment" provides a feasible technical solution. This research not only demonstrates China's innovative strength in the field of new energy, but also heralds the arrival of a new era. In the near future, "battery anxiety" may become history. Let us look forward to the commercialization of this revolutionary technology as soon as possible!
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Post time: Feb-28-2025