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New polymer electrolyte for lithium-metal batteries

Researchers at the University of Hong Kong have discovered a series of anionic network solid electrolytes that can deliver at least a fourfold improvement in cationic transport for lithium-metal battery ....

Dennis Riedl , University Of Hong Kong , Hong Kong ,

Dongwha to invest over $70 million to build plant in Tennessee

Dongwha Electrolyte has determined the size of investments for its new electrolyte manufacturing plant in the U.S., as well as the factory s production capacity, the affiliate of Dongwha Enterprise, said Monday. The company will invest over $70 million to build the new manufacturing plant on a 162,000-square-meter site in Clarksville, Tennessee. ....

United States , Lee Sijoon , Dongwha Electrolyte , Dongwha Enterprise , North American , South Korea , He Korea Times , Orea Times , Orean News In English ,

"Electrostatic Shielding Boosts Electrochemical Performance of Alloy-Ty" by Cheng Zheng, Deluo Ji et al.

The applications of alloy-type anode materials for Na-ion batteries are always obstructed by enormous volume variation upon cycles. Here, K+ ions are introduced as an electrolyte additive to improve the electrochemical performance via electrostatic shielding, using Sn microparticles (μ-Sn) as a model. Theoretical calculations and experimental results indicate that K+ ions are not incorporated in the electrode, but accumulate on some sites. This accumulation slows down the local sodiation at the “hot spots”, promotes the uniform sodiation and enhances the electrode stability. Therefore, the electrode maintains a high specific capacity of 565 mAh g−1 after 3000 cycles at 2 A g−1, much better than the case without K+. The electrode also remains an areal capacity of ≈3.5 mAh cm−2 after 100 cycles. This method does not involve time-consuming preparation, sophisticated instruments and expensive reagents, exhibiting the promising potential for other anode materials. ....

Alloy Type Anode , Electrostatic Shielding , Sodium Ion Batteries ,

"Interface challenges and optimization strategies for aqueous zinc-ion " by Hanwen Liu, Qianqin Zhou et al.

Aqueous zinc-ion batteries have advantages over lithium-ion batteries, such as low cost, and good safety. However, their development is currently facing several challenges. One of the main critical challenges is their poor electrode–electrolyte interface. Addressing this requires understanding the physics and chemistry at the electrode–electrolyte interface, including the cathode-electrolyte interface and anode-electrolyte interface. This review first identifies and analyses the interfacial challenges of aqueous zinc-ion batteries. Then, it discusses the design strategies for addressing the defined interfacial issues from the perspectives of electrolyte optimization, electrode modification, and separator improvement. Finally, it provides corrective recommendations and strategies for the rational design of electrode–electrolyte interface in aqueous zinc-ion batteries towards their high-performance and reliable energy storage. ....

Queous Zinc Ion Battery ,

Electrochemical microsensor enables real-time study of serotonin dynamics in the brain

Dysregulation of serotonin plays a role in many psychiatric disorders, including severe depression and anxiety. In the journal Angewandte Chemie, a research team has now introduced an implantable, electrochemical microsensor that makes it possible to study serotonin dynamics in the brain in real time. ....

Ying Jiang , Danielle Ellis , Angewandte Chemie , Lanqun Mao At Beijing Normal University , Lab Diagnostics , Chinese Academy Of Sciences , Image Credit , Lanqun Mao , Beijing Normal University , Chinese Academy , Automation Industry Focus ,