đ MAROKO133 Breaking ai: New fluoride electrolyte lets solid-state batteries hit r
In a stunning leap for energy storage science, researchers at Yonsei University have developed a fluoride-based solid electrolyte that pushes all-solid-state batteries (ASSBs) beyond the long-impenetrable 5-volt limit, without compromising safety or conductivity.
The discovery could mark the beginning of a new era for electric vehicles and renewable energy storage systems, where batteries last longer, charge faster, and store more energy.
Professor Yoon Seok Jung and his team introduced a fluoride solid electrolyte, LiClâ4LiâTiFâ, that maintains stability at voltages exceeding 5 V.
For decades, such high-voltage operation was considered out of reach because most solid electrolytes, including sulfides and oxides, break down above 4 V.
âOur fluoride solid electrolyte, LiClâ4LiâTiFâ, opens a previously forbidden route for high-voltage operation in solid-state batteries, marking a true paradigm shift in energy storage design,â said Prof. Jung.
Fluorideâs energy revolution
The teamâs innovation delivers both high voltage and high ionic conductivityâ1.7 Ă 10â»â” S/cm at 30°C, one of the best in its category.
This unique performance allows it to pair with high-energy spinel cathodes such as LiNiâ.â Mnâ.â Oâ (LNMO), a material known for efficiency but previously hindered by electrolyte instability.
When used as a protective coating on cathodes, the fluoride electrolyte prevents the interfacial breakdown that typically limits battery life.
The result is impressive: the solid-state battery retained over 75% capacity after 500 charge cycles and achieved an ultrahigh areal capacity of 35.3 mAh/cmÂČ, a record for solid-state systems.
Even in pouch-type batteries, the same format used in electric vehicles and electronics, the system demonstrated consistent performance, indicating real-world viability.
The Yonsei teamâs fluoride-based approach does more than improve a single battery, it redefines how ASSBs can be designed.
By introducing a âfluoride-based shield,â the researchers created an electrolyte thatâs not only stable but also compatible with cost-efficient halide catholytes, including Zr-based systems.
This compatibility could reduce material costs while improving safety and longevity: two major hurdles in scaling solid-state batteries commercially.
Powering a sustainable future
Beyond its technical promise, the development has deep industrial implications. High-voltage, stable solid electrolytes are the missing piece for electric vehicles capable of longer ranges and faster charging without thermal risks.
The fluoride compoundâs thermal stability and mechanical robustness address both performance and safety, critical factors for next-generation power systems.
The researchers believe their findings could reshape how the world builds energy storage systems. âThis research goes beyond a single material; it defines a new design rule for building safe, durable, and high-energy batteries that can truly power the future,â Prof. Jung said.
The fluoride-based design not only boosts energy density but also uses abundant and low-cost materials, aligning with global efforts to develop carbon-neutral energy systems.
As industries move toward electrification and renewable storage, such breakthroughs could accelerate the transition to cleaner, more resilient technologies.
The study, which marks a major step toward commercializing high-voltage solid-state batteries, was published in Nature Energy.
đ Sumber: interestingengineering.com
đ MAROKO133 Eksklusif ai: New fluoride electrolyte lets solid-state batteries hit
In a stunning leap for energy storage science, researchers at Yonsei University have developed a fluoride-based solid electrolyte that pushes all-solid-state batteries (ASSBs) beyond the long-impenetrable 5-volt limit, without compromising safety or conductivity.
The discovery could mark the beginning of a new era for electric vehicles and renewable energy storage systems, where batteries last longer, charge faster, and store more energy.
Professor Yoon Seok Jung and his team introduced a fluoride solid electrolyte, LiClâ4LiâTiFâ, that maintains stability at voltages exceeding 5 V.
For decades, such high-voltage operation was considered out of reach because most solid electrolytes, including sulfides and oxides, break down above 4 V.
âOur fluoride solid electrolyte, LiClâ4LiâTiFâ, opens a previously forbidden route for high-voltage operation in solid-state batteries, marking a true paradigm shift in energy storage design,â said Prof. Jung.
Fluorideâs energy revolution
The teamâs innovation delivers both high voltage and high ionic conductivityâ1.7 Ă 10â»â” S/cm at 30°C, one of the best in its category.
This unique performance allows it to pair with high-energy spinel cathodes such as LiNiâ.â Mnâ.â Oâ (LNMO), a material known for efficiency but previously hindered by electrolyte instability.
When used as a protective coating on cathodes, the fluoride electrolyte prevents the interfacial breakdown that typically limits battery life.
The result is impressive: the solid-state battery retained over 75% capacity after 500 charge cycles and achieved an ultrahigh areal capacity of 35.3 mAh/cmÂČ, a record for solid-state systems.
Even in pouch-type batteries, the same format used in electric vehicles and electronics, the system demonstrated consistent performance, indicating real-world viability.
The Yonsei teamâs fluoride-based approach does more than improve a single battery, it redefines how ASSBs can be designed.
By introducing a âfluoride-based shield,â the researchers created an electrolyte thatâs not only stable but also compatible with cost-efficient halide catholytes, including Zr-based systems.
This compatibility could reduce material costs while improving safety and longevity: two major hurdles in scaling solid-state batteries commercially.
Powering a sustainable future
Beyond its technical promise, the development has deep industrial implications. High-voltage, stable solid electrolytes are the missing piece for electric vehicles capable of longer ranges and faster charging without thermal risks.
The fluoride compoundâs thermal stability and mechanical robustness address both performance and safety, critical factors for next-generation power systems.
The researchers believe their findings could reshape how the world builds energy storage systems. âThis research goes beyond a single material; it defines a new design rule for building safe, durable, and high-energy batteries that can truly power the future,â Prof. Jung said.
The fluoride-based design not only boosts energy density but also uses abundant and low-cost materials, aligning with global efforts to develop carbon-neutral energy systems.
As industries move toward electrification and renewable storage, such breakthroughs could accelerate the transition to cleaner, more resilient technologies.
The study, which marks a major step toward commercializing high-voltage solid-state batteries, was published in Nature Energy.
đ Sumber: interestingengineering.com
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