Recently, the Changchun Institute of Applied Chemistry under the Chinese Academy of Sciences announced significant progress in the development of key materials and battery systems for lithium-air batteries. According to Huageng, the limited energy capacity of current batteries has become a major bottleneck for the growth of electric vehicles. Lithium-air batteries, with their theoretical specific energy that is 1 to 2 orders of magnitude higher than conventional lithium-ion batteries, are considered one of the most promising candidates to replace gasoline-powered engines. As a result, they have gained considerable attention as a potential game-changer in the electric vehicle industry.
However, existing lithium-air batteries still face major challenges, including poor electrolyte stability, low efficiency in air electrode performance, and short cycle life. These issues lead to low energy conversion efficiency and unsatisfactory rate performance, which hinder their practical application.
Supported by the National Natural Science Foundation of China, the Ministry of Science and Technology, and the Chinese Academy of Sciences, a research team led by Dr. Zhang Xinbo from the Changchun Institute of Applied Chemistry has made groundbreaking advances in lithium-air battery technology. Their work has significantly improved the performance and durability of these batteries.
The team successfully extended the cycle life of lithium-air batteries by suppressing electrolyte decomposition, optimizing the three-phase interface (solid, liquid, gas) at the air electrode, and refining the overall system design. This breakthrough increased the cycle life from previous reports by up to 500 times. Their findings were published in top-tier journals such as *Advanced Functional Materials* and *Chemical Communications* in 2012.
A key issue with current lithium-air batteries is the decomposition of electrolytes during operation, leading to irreversible byproducts and reduced battery lifespan. To address this, the team introduced sulfoxide (DMSO) and sulfone (TMS) into the electrolyte, which helped promote the formation of reversible lithium peroxide (Liâ‚‚Oâ‚‚), while minimizing unwanted side reactions. Through in-depth analysis of the air electrode, they found that inefficient catalysis, improper pore structure, and poor conductivity were critical factors limiting performance.
Based on these insights, the team pioneered the concept of a graphene-integrated air electrode. They constructed a three-dimensional porous graphene structure on a nickel foam substrate, combining high electrical conductivity with an optimal pore network. This design significantly enhanced the battery's rate performance. Additionally, by utilizing rare-earth perovskite-type composite oxides, they improved the electrocatalytic activity, reducing charge/discharge overpotential and boosting energy efficiency.
Building on these achievements, the team also designed and optimized practical lithium-air battery systems and structures. They developed lithium-air battery packs with independent intellectual property rights, bringing the technology closer to real-world applications in electric vehicles and renewable energy storage systems like solar and wind power.
Stamped Steel Mounting Flange Unit
Our Stamped Steel Mounting Flange Unit">Stamped Steel Mounting Flange Unit is good in quality and competitive in price. We are manufacturer and supplier of Stamped Steel Mounting Flange Unit following your specific requirement. We are looking forward to your E-mail and establishing cooperative relationship with you! We would provide professional Stamped Steel Mounting Flange Unit with good services for you!
Stamped Steel Mounting Flange, Mounting Flanges, Steel Mounting Flange Unit
NINGBO BORINE MACHINERY CO.,LTD , https://www.borine-agroparts.com