Ionic Conductivity

New battery material offers promise for the development of all-solid batteries. In the quest for the perfect battery, scientists have two primary goals: create a device that can store a great deal of energy and do it safely. Many batteries contain liquid electrolytes, which are potentially flamma

A team led by Dr. Ha Yoon-Cheol, a Principal Researcher of Next Generation Battery Research Center at the Korea Electrotechnology Research Institute (KERI) and Dr. Cheol-Min Park, a Professor of School of Materials Science and Engineering at Kumoh National Institute of Technology (KIT), has developed a low-cost production technology for silicon disulfide (SiS2) for solid-state electrolytes (argyrodite-type) that…

The development of highly efficient energy storage devices that can store renewable energy is crucial to a sustainable future. In today's world, solid-state rechargeable lithium ion (Li+) batteries are the state of the art. But lithium is a rare earth metal, and society's dependence on the element is likely to lead to a rapid decline in resources and subsequent price hikes.

A research group in the doctoral program of Toyohashi University of Technology's Department of Electrical and Electronic Information Engineering that includes a doctoral student Hirotada Gamo and specially appointed assistant professor Jin Nishida, specially appointed associate professor Atsushi Nagai, assistant professor Kazuhiro Hikima, professor Atsunori Matsuda and others, developed a large-scale manufacturing…

MIT engineers have designed an ultrathin fuel cell that converts glucose directly into electricity. They envision the new design could be made into films or coatings and wrapped around medical implants to passively power their electronics using the body's abundant glucose supply.

Lanthanum trihydride, a compound of lanthanum and hydrogen, when lightly doped with oxygen shows potential as an efficient hydrogen carrier, according to a new study. Hydride ion (H--) conductors are expected to be used in chemical reactors and energy storage systems. However, the low H-- conductivity at room temperature introduces certain technical limitations. These limitations may now be overcome with this…

Japan's new quasi-solid-state battery promises a non-flammable, super-safe energy solution with improved performance and thermal stability.

A research team at the Technical University of Munich (TUM) has discovered a material class with above-average conductivity. This is a decisive step forward in the development of high-performance solid-state batteries. Investigations conducted at the Research Neutron Source Heinz Maier-Leibnitz (FRM II) made an essential contribution to the discovery.

Electrochemical devices such as fuel cells are becoming indispensable for new power generation technologies because they can efficiently produce renewable energy. Ceramic proton conductors can be used in many applications, including protonic ceramic fuel cells (PCFCs), hydrogen pumps, sensors, and separation membranes. In particular, PCFCs based on ceramic proton conductors are promising, because they can work at…

Sodium secondary batteries have a similar working principle to lithium secondary batteries but are low-cost and are expected to serve as a powerful supplement to lithium secondary batteries. Solid-state batteries offer high-safety and high-energy-density features, and are considered to have remarkable prospects. However, all-solid-state batteries are disadvantaged by their poor physical solid-solid interfacial…

While obtaining H2 from water splitting offers a promising strategy for renewable fuel production, current technologies rely on liquid freshwater. Here, authors use a hygroscopic electrolyte to achieve electrocatalytic water vapor splitting driven by renewable resources without liquid water.

Scientists have created a chlorine-based solid-state electrolyte for lithium-ion batteries that offers improved performance.

Engineers from MIT and Kyushu University in Japan have demonstrated for the first time that light can be used to significantly improve the performance of fuel cells, lithium batteries and other devices that are based on the movement of charged atoms, or ions.

One method to improve charging times in frigid weather is to improve the electrolytes to simultaneously have high ionic conductivity, low solvation energy and low melting point,...

Researchers at Tokyo Tech have discovered hidden chemical order of the Mo and Nb atoms in disordered Ba7Nb4MoO20, by combining state-of-the-art techniques, including resonant X-ray diffraction and solid-state nuclear magnetic resonance. This study provides valuable insights into how a material's properties, such as ionic conduction, can be heavily influenced by its hidden chemical order. These results would…

Solid oxide fuel cells (SOFCs) are a promising solution to the contemporary problem of the impending global energy crisis. SOFCs show high efficiency, lower emissions, and have low operating costs, making them an ideal power source for a fossil fuel-free society.

A new paper published in Science describes the chemistry behind a novel lithium-air battery, an innovative design which could potentially provide way more energy density than traditional...

Garnet-type solid electrolytes are attracting great interest due to high ionic conductivity and excellent electrochemical stability against Li metal. However, the thick electrolyte layer and rigid nature as well as poor interfacial contact are huge obstacles for its application in all-solid-state lithium batteries. Currently, researchers in China provide a promising strategy toward realizing 20 μm-thick flexible…

As car manufacturers and battery cell makers race to develop more efficient and cost-effective EV batteries, there's one material that's been gaining significant traction in replacing ...

A new chemical compound similar to minerals found in alkaline rocks has been discovered at Tokyo University of Science, potentially revolutionizing solid-state batteries for electric vehicles (EVs). This pyrochlore-type oxyfluoride, replacing sulfides as the electrolyte conductor, promises exceptional conductivity even at elevated temperatures. Researchers at Tokyo University of Science have identified a…