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2021-11-17
If you want to double the energy density of batteries, you must rely on next-generation battery technology. Dr. Zhang Yuegang recommended the following three popular battery technologies to us, most of which are still in the laboratory research and development stage. Although there is still a long way to go before commercial production, we believe that the rapid development of mobile electronic equipment will increase investment in the battery field, thereby accelerating technological and commercial breakthroughs to a certain extent.
The development of mobile phones, tablet computers, and various wearable devices is in full swing. However, batteries have become one of the bottlenecks restricting the development of all these mobile electronic devices. Most users who are just starting to use smartphones will be disappointed by the battery life-it used to be able to use 4-7 days of mobile phone power, but now it needs to be recharged every day.
Lithium-ion batteries are currently the most mainstream of secondary rechargeable batteries, and are favored by investors and practitioners. However, in the long run, it is unlikely that their energy density will be improved exponentially. From the perspective of smart phones, people spend more and more time on the Internet, and the speed of the Internet is getting faster and faster, and the supporting chip must be faster and faster. At the same time, the screen is getting bigger and bigger. Despite various energy-saving improvements, the energy consumption is It is indeed increasing. According to Dr. Zhang Yuegang, an international expert in the battery field of the Chinese Academy of Sciences, a rechargeable battery is now to be used on a smart phone for one week, and there is currently little possibility of a breakthrough.
Energy density is one of the core indicators for testing battery quality. The goal of improvement is to store more and more energy in battery packs that are lighter in weight and smaller in size. Take the lithium battery of BYD, a familiar manufacturer, as an example. Its actual specific energy is 100-125 watt-hours/kg and 240-300 watt-hours/liter in terms of weight and volume, which are used by Tesla electric car ModelS. The energy density of the Panasonic laptop battery is 170 Wh/kg. In our previous report, Enevate Corporation (Enevate Corporation) can increase the energy density of the battery by more than 30% by improving the anode material of the lithium-ion battery.
If you want to double the energy density of batteries, you must rely on next-generation battery technology. Dr. Zhang Yuegang recommended the following three popular battery technologies to us, most of which are still in the laboratory research and development stage. Although there is still a long way to go before commercial production, we believe that the rapid development of mobile electronic equipment will increase investment in the battery field, thereby accelerating technological and commercial breakthroughs to a certain extent.