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Researchers unveil fire-inhibiting nonflammable gel polymer electrolyte for lithium-ion batteries

Researchers have created a fire-inhibiting, nonflammable gel polymer electrolyte for lithium-ion batteries, increasing ion conductivity by 33% and improving life characteristics by 110%. The electrolyte prevents radical chain reactions during combustion, effectively inhibiting battery fires.

Bio-inspired battery design

A team of Chinese researchers has developed a bio-inspired approach to improve the performance of flexible sodium-ion batteries. By methylating the structural polymer in the hydrogel electrolyte, they significantly increase the salt stability, leading to better battery capacity and cycling performance. The modified hydrogel can absorb ...

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateOct 5, 2023

A solid battery electrolyte with high performance

A new solid-state electrolyte has been designed with a three-dimensional mesh structure, achieving high ionic conductivity and fast lithium ion migration numbers. This material could be a good choice for next-generation all-solid-state lithium-based batteries with high energy density.

SourcePNAS Nexus·JournalPNAS Nexus·DateSep 5, 2023

New oxychloride solid-state electrolyte for lithium batteries shows good performance with ultra-low cost

Researchers developed a new solid-state electrolyte named lithium zirconium oxychloride (LZCO) from affordable compounds, achieving state-of-the-art performance at low cost. LZCO boasts high room-temperature ionic conductivity and exceptional compressibility, comparable to advanced sulfide and chloride solid-state electrolytes.

SourceUniversity of Science and Technology of China·JournalNature Communications·DateJul 13, 2023

Turning up the heat

Researchers at Oak Ridge National Laboratory discovered a method to press solid electrolytes, eliminating air pockets that block ion flow and increasing conductivity by nearly 1,000 times. This breakthrough enables unprecedented control over internal structure, paving the way for industrial-scale processing and more reliable batteries.

SourceDOE/Oak Ridge National Laboratory·JournalACS Energy Letters·DateJun 6, 2023

New priming method improves battery life, efficiency

Researchers at Rice University developed a new priming method to optimize prelithiation in silicon anodes, improving battery life cycles by up to 44% and energy density. The method uses stabilized lithium metal particles with surfactants, enabling more stable SEI layer formation and reduced lithium depletion.

SourceRice University·JournalACS Applied Energy Materials·TypeExperimental study·DateMay 15, 2023

New 'smart layer' could enhance durability and efficiency of solid-state batteries

Researchers developed a new technique to make solid-state electrolytes safer and more efficient for solid-state batteries, addressing the dendrite growth problem. The new approach creates a barrier layer that slows down dendrite growth and promotes their quick elimination, making the battery safer and more reliable.

SourceUniversity of Surrey·JournalEnergy & Environmental Science·TypeExperimental study·DateApr 5, 2023

Bilayer PET/PVDF substrate-reinforced solid polymer electrolyte improves solid-state lithium metal battery performance

A bilayer, nonwoven PET microfiber/polyvinylidene fluoride nanofiber membrane acts as a separator for LIB systems and prevents short circuits. The substrate significantly improves the mechanical and thermal properties of solid polymer electrolytes, enabling cells to operate over 2000 hours.

SourceShinshu University·JournalJournal of Power Sources·TypeExperimental study·DateMar 22, 2023

New study takes close look at energy storage

Researchers analyze current state of solid-state battery technology, identifying key challenges such as developing solid electrolytes and anode materials. The study concludes that new approaches in material research are necessary to overcome these hurdles and achieve commercialization.

SourceUniversity of Münster·JournalNature Energy·TypeSystematic review·DateFeb 23, 2023

New sodium, aluminum battery aims to integrate renewables for grid resiliency

Researchers developed a new molten salt battery design using sodium and aluminum that can charge and discharge faster, operate at lower temperatures, and maintain excellent energy storage capacity. The battery's specific energy density could reach up to 100 Wh/kg, making it a promising solution for 10-plus hours of energy storage.

SourceDOE/Pacific Northwest National Laboratory·JournalEnergy Storage Materials·TypeExperimental study·DateFeb 7, 2023

Illinois Tech assistant professor publishes paper in Science on novel chemistry behind ultra-high power density batteries

Assistant Professor Mohammad Asadi has published a paper in Science describing the chemistry behind his novel lithium-air battery design, which could store one kilowatt-hour per kilogram or higher. This breakthrough technology has the potential to revolutionize heavy-duty vehicles such as airplanes, trains, and submarines.

SourceIllinois Institute of Technology·JournalScience·TypeExperimental study·DateFeb 2, 2023

Elucidation of electrolyte decomposition behavior in all-solid-state lithium-sulfur batteries

Researchers at Toyohashi University of Technology elucidated the decomposition behavior of electrolytes in cathode composites of all-solid-state lithium-sulfur batteries. The sulfide solid electrolytes convert to thiophosphates with long-chain cross-linked sulfur during charging and discharging cycles, governing battery performance.

SourceToyohashi University of Technology (TUT)·JournalChemistry of Materials·TypeExperimental study·DateJan 31, 2023

Stanford scientists illuminate barrier to next-generation battery that charges very quickly

Researchers at Stanford University have developed a new understanding of how nanoscale defects and mechanical stress cause solid electrolytes to fail. By studying over 60 experiments, they found that ceramics often contain tiny cracks on their surface, which can lead to short circuits during fast charging. The discovery could pave the ...

SourceStanford University·JournalNature Energy·TypeExperimental study·DateJan 30, 2023

Scientists develop electrode material that preserves its volume, making it ideal for solid-state EV batteries

Scientists have developed a positive electrode material that maintains its volume during repeated charge/discharge cycles, ideal for solid-state EV batteries. This breakthrough offers significant improvements in durability and charging speed, potentially reducing battery costs and enabling faster charging times.

SourceYokohama National University·JournalNature Materials·DateDec 12, 2022

Flameproofing lithium-ion batteries with salt

Researchers have created a non-flammable electrolyte for lithium-ion batteries by increasing the amount of salt in a polymer-based solution. This 'SAFE' electrolyte proves to be stable at high temperatures, allowing batteries to function safely and efficiently. The development could lead to improved performance, reduced space occupied ...

SourceDOE/SLAC National Accelerator Laboratory·JournalMatter·TypeExperimental study·DateDec 7, 2022

Introduction of fluoroethylene carbonate into a poly(1,3-dioxolane)-based polymer electrolyte to stabilize a sodium metal anode

The introduction of fluoroethylene carbonate (FEC) into a poly(1,3-dioxolane)-based polymer electrolyte improves the performance of sodium metal batteries. FEC forms a passivation layer that inhibits side reactions between DOL and the Na metal, reducing interfacial resistance and improving battery overall performance.

Novel method helps quantify reversibility and irreversibility of practical li metal batteries

A research group has developed an innovative methodology to quantify the electrochemical reversibility of a lithium metal anode in practical lithium battery systems. The method enables the precise quantification of active and inactive lithium, allowing for a better understanding of the degradation and failure of Li metal batteries.

SourceChinese Academy of Sciences Headquarters·JournalNature Energy·TypeMeta-analysis·DateOct 2, 2022

In pursuit of better batteries

A team of University of Missouri researchers is working to understand why solid-state lithium-ion batteries struggle with performance issues. They will use a specialized electron microscope and thin film polymer coatings to study the interface between the battery cathode and electrolyte, with the goal of developing an engineered interf...

New magnesium superionic conductor towards lithium-free solid-state batteries

Researchers from Tokyo University of Science create a metal–organic framework-based magnesium ion conductor showing superionic conductivity at room temperature, overcoming the limitations of magnesium ion-based energy devices. The novel Mg2+ electrolyte exhibits a high conductivity of 10−3 S cm−1, making it suitable for battery applica...

SourceTokyo University of Science·JournalJournal of the American Chemical Society·TypeExperimental study·DateAug 4, 2022

Development for novel large-scale manufacturing technology of sulfide solid electrolytes

Researchers at Toyohashi University of Technology have developed a novel large-scale manufacturing technology for sulfide solid electrolytes, specifically Li7P3S11, which exhibits high ionic conductivity. This breakthrough enables the low-cost and scalable production of highly ion conductive solid electrolytes for all-solid-state batte...

SourceToyohashi University of Technology (TUT)·JournalAdvanced Energy and Sustainability Research·TypeExperimental study·DateMay 13, 2022

Building a new mechanical property evaluation method for atmospherically unstable sulfide solid electrolyte

Researchers developed an indentation test to evaluate mechanical properties of sulfide solid electrolytes, crucial for all-solid-state lithium-ion secondary batteries. The method enabled accurate assessment in inert atmosphere, confirming superior mechanical properties of sulfide-type solid electrolytes.

SourceToyohashi University of Technology (TUT)·JournalACS Applied Energy Materials·TypeExperimental study·DateMar 15, 2022

Development of an artificial vision device capable of mimicking human optical illusions

The National Institute for Materials Science in Japan has developed an ionic artificial vision device capable of increasing edge contrast between dark and light areas like human vision. This device uses ionic migration and interaction within solids to mimic human optical illusions without software.

SourceNational Institute for Materials Science, Japan·JournalNano Letters·TypeImaging analysis·DateNov 29, 2021

Solvent effect on liquid-phase synthesis of lithium solid electrolytes

The study investigates the effect of solvent on liquid-phase synthesis of lithium solid electrolytes. The research team found that solvents with high dielectric constants enhance reactivity and lead to crystalline Li7P3S11 with high conductivity. Acetonitrile emerges as the best solvent for mass production of sulfide solid electrolytes.

SourceToyohashi University of Technology (TUT)·JournalScientific Reports·TypeExperimental study·DateNov 15, 2021

A solid favor for researchers: A new way to investigate the electric double layer effect

Scientists at Tokyo University of Science develop a new methodology to investigate the elusive electric double layer (EDL) effect in all-solid-state batteries. The study reveals that the EDL effect is dominated by the electrolyte's composition and can be suppressed through charge compensation, leading to improved performance.

SourceTokyo University of Science·JournalCommunications Chemistry·TypeExperimental study·DateAug 26, 2021