For a long time, safety and cycle life for lithium-ion batteries, like fish and bear's paw is difficult to have both. The “Nature·Material†magazine website recently issued a document saying that scientists have used inexpensive organic materials to prepare new water-based lithium-ion batteries, which has solved this problem well.
The paper's correspondent, University of Houston, Texas Professor Chao Yan Superconductor Center on the 22nd to receive an interview with Science and Technology Daily said that the current lithium-ion battery with flammable organic electrolyte, there is a great security risk, not long ago Samsung Galaxy Note 7 phone explosion Once again, it sounded the alarm for the industry. In contrast, water-based batteries such as lead-acid batteries and nickel-metal hydride batteries use water as the electrolyte, which has the advantages of low cost, safety, and non-flammability. However, the disadvantages are also obvious. The cycle life is short, only about 300 times, and it cannot be satisfied. More than 5000 cycle life requirements for electric vehicles and energy storage.
In response to this problem, Yao Yan used inexpensive organic materials to replace the negative electrode of existing water cells, and drove the water cells beyond the bottleneck of life when the existing battery production equipment was rarely changed. “In a sense, this is of great significance to the upgrading of various types of water battery products,†said Yao Yan.
Yao Yan emphasized that the organic materials they use are much lower than those of ordinary electrode materials, do not contain harmful heavy metal elements, and have no pollution to the environment. In addition, the material also has the advantages of high specific capacity, long life, etc. The new water-based lithium-ion battery made from this material has 10 times the life of traditional lead-acid batteries, and the charging time is only 20 minutes, which can replace lead-acid batteries. In the new energy fields such as start-stop battery, wind-photoelectric energy storage, and low-speed electric vehicle.
In addition, the new water-based lithium-ion battery also simplifies the production process, eliminating the need for drying and greatly reduces production costs.
Yao Yan revealed that the second-generation water-based lithium-ion battery under development has higher energy density and lower cost. At present, the team has applied for a number of international patents and hopes to speed up the transition from technology to products. (Reporter Jiang Jing)
The PHROXI Metal handle kitchen faucet have Stainless steel spring.For cleanup and prep, the Kitchen Faucet moves with you, thanks to its flexible coil feature and pull-down spray.
Kitchen Faucet,Kitchen Taps,Kitchen Faucets,Kitchen Sink Faucets
HESHAN CAIZUN SANITRAYWARE CO.,LTD , https://www.nbcaizunsanitaryware.com