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At present, both smart phones and new energy vehicles require higher performance batteries. The National Institute of Materials Science (NIMS) recently announced that it has developed a new lithium battery with a very high energy density. NIMS calls this new type of lithium battery a "lithium-air battery," and its energy density per unit volume is almost at its limit, and the cost can be well controlled. NIMS introduced that "lithium-air batteries" use carbon nanotubes as the air electrode material. Through the optimization of the electrode structure, high energy density can be achieved, which is 15 times that of common lithium batteries. NIMS said that the current "lithium-air battery" is just a test product and will continue to optimize its design and further increase its energy density.
Battery life is one of the most important metrics. It is claimed that it is the world's first solar-powered mobile phone battery. This battery, called Hybbi, is mainly composed of a lithium battery and a solar module. By directly replacing the original battery of the mobile phone, this charging method has extremely low energy loss and is twice as efficient as other solar charging products. Hybbi solar panels are covered with gorilla glass and laser-cut to a thickness of less than 1mm. In the case of direct sunlight, the charging rate can reach 20% per hour.
New technologies have also been applied to the development of battery materials. Toyota Motor Corp. announced that it will invest US$35 million in the development of new energy battery materials in the next four years. From Toyota's perspective, artificial intelligence will be the key to finding new energy sources in the future. The artificial intelligence-based computational model as a new tool has recently been applied to the study of materials science. It may take decades to find new materials, but Toyota hopes to speed up this process by integrating artificial intelligence into its computational model.
Inspired by the tree structure, engineers at the University of Maryland in the United States modified the wood to use it as a special structure for the negative electrode of lithium metal batteries to avoid battery failure caused by some key factors. They proposed a new design to store the lithium ions in the battery in wood for natural channels that transport water and nutrients. The battery thus made is very safe and can be charged and discharged quickly.
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Some people say that the key to new energy technologies is batteries. Indeed, whether it is new energy vehicles or mobile phones and other electronic products, or even emerging drones, batteries are one of the most important factors that restrict product performance. In order to achieve a breakthrough in the field of batteries, both the battery as a whole and the various components of the battery are the focus of research and development by researchers, and new technologies and materials are constantly being applied. The International Battery Symposium recently presented Tesla with the “Battery Innovator of the Year Award 2017†in recognition of Tesla's successful implementation of cutting-edge battery technology. The application of new materials and the introduction of intelligent energy storage solutions can, on the one hand, improve battery efficiency and enhance product performance. On the other hand, it can effectively save energy and protect the ecological environment.
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