The author of the paper, Professor Yao Yan of the Texas Superconductor Center of Houston University, said in an interview on the 22nd that the current lithium-ion battery uses a flammable organic electrolyte, which has great security risks. The Samsung Galaxy Note 7 mobile phone explosion is again The industry has sounded the alarm. In contrast, water-based batteries such as lead-acid batteries and nickel-hydrogen batteries use water as an electrolyte, which has the advantages of low cost, safety, and no combustion, but the disadvantages are also obvious - the cycle life is short, only about 300 times, which cannot be satisfied. More than 5,000 cycle life requirements for electric vehicles and energy storage.
In response to this problem, Yao Yan used cheap organic materials to replace the negative electrode of existing water-based batteries, and made water-based batteries break the life bottleneck with little change in existing battery production equipment. "In a sense, this is of great significance to the upgrading of various types of water battery products." Yao Yan said.
Yao Yan emphasized that the organic materials they use are much lower than the average electrode material price, and do not contain harmful heavy metal elements, and there is no pollution to the environment. In addition, the material also has the advantages of high specific capacity and long life. The new water-based lithium-ion battery made of this material has 10 times longer life than the traditional lead-acid battery, and the charging time is only 20 minutes, which can replace the lead-acid battery. It is used in new energy fields such as start-stop batteries, wind and photovoltaic energy storage, and low-speed electric vehicles.
In addition, the new water-based lithium-ion battery simplifies the production process, eliminating the need for a drying room and greatly reducing production costs.
Yao Yan revealed that the second-generation water-based lithium-ion battery being developed has higher energy density and lower cost. At present, the team has applied for a number of international patents, hoping to accelerate the process of conversion from technology to products.
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