The word "myth" originated from the Greek word μθο, a transliteration of the English word Myth, and a translation into a myth, fantasy, story, fictional person or thing, referring to the very old legends and stories that have been passed down through the mouth. It refers to the field or phenomenon that human beings cannot verify by scientific methods, emphasizing its non-scientific and fanciful subjective value that cannot be combined with reality. The existence of myths mainly emphasizes the subjective value of its critical reality. The anthropologist Levi Strauss believes that myths are stories written by people in response to conflicts that are difficult to fully resolve in social life. Myths are usually very old, meaning that there are no records or other evidence to prove that they have happened, usually passed down by the elderly to young people. Some myths may have originated in real events, but after people have said that some parts may have changed, so they are not "real", may have been mistakenly changed, or become more interesting. All cultures have myths, such as the stories of gods and goddesses in Greece and Rome. Many people believe in the existence of animals and gods in myth, such as Zeus can create a storm to show his anger. Other examples are the Egyptian god Atum, described as the creator of everything in the world. In Indian mythology, the formation of thunderstorms is described as the wrath of God's leader Indra. His most powerful weapon is King Kong (Thunderbolt). If he is hit by his weapon, no one can survive. The above content is excerpted from Baidu Encyclopedia's interpretation of the term "myth". The term also refers to the term "myth", which is mainly used by Taiwanese and adds some meaning to the meaning of English original words. The new meaning refers to "the place where things are not understood, the misunderstanding of things" or "the question of some temporary problems (but not necessarily the answer, sometimes just a logical reasoning, but The final conclusion is given to the audience to complete). Since the advent of mobile phones, there has been a myth that has always existed: many mobile phone manuals or store clerk will tell you how many hours to charge continuously when charging the phone for the first time, otherwise it will affect the performance and life of the battery. Clouds. If you have an understanding of the battery and its charging characteristics, this myth is easily broken and will no longer follow their guidelines. Affected by the widespread popularity of smartphones and the popularization of electric vehicles by manufacturers, battery capacity and charging speed have become a topic of widespread concern, and the myths associated with them have also emerged. The most creative myths are those that are subversive. Recently, an article entitled "No negative battery", or the subversion of electric cars and mobile phone batteries, has been widely spread on the Internet. This is a subversive message. Everything is negative and yang, as a battery, there is no negative, where is the anode? It is also impossible to exist as a battery entity. How will our electric cars and mobile phones use it? As a messenger of information, what exactly do you want to get the clickthrough rate? Still have to get the click rate? I believe that through revolutionary improvements in battery materials and structures, we are likely to get products with a large increase in capacity density, a significant increase in power density, and better safety, but it really becomes a reality. In the past, don't use some sensational things to attract everyone's attention, let people have some unrealistic fantasies, but at the same time have to live in reality, let the entanglement in the heart cause our physical and mental diseases, bring to society Unstable factors. Many years ago, influenced by the concept of environmental protection and energy conservation, the batteries used in my home were rechargeable nickel-metal hydride batteries. The chargers used to charge them were also common. It took several hours to charge the battery each time. Later, I saw the news that the charging speed of a nickel-metal hydride battery manufactured by a Japanese manufacturer has been completed within half an hour, and more than half of the batteries I use are owned by this company, so the impulse to buy a fast charger is generated. The result was that I was able to find a product that could be charged extremely quickly from the omnipotent Huaqiangbei market. So the tragic thing happened to me. All of my batteries were charged after the charge was reduced, and I had to abandon it. Although this did not make me have a bad idea about NiMH batteries, I have never bought them since then, which shows how much negative feelings will affect our lives, and accordingly, related to them. The industry is also bound to be affected. The charger that has affected me is not necessarily caused by the charging speed, or it may not be charged according to the charging strategy of NiMH batteries, because each battery has its own The characteristic, when you treat it in an incorrect way, the problem comes out. For the lithium-ion battery we use today, I have seen this picture many years ago: This is a graph of the charge-discharge rate of a lithium-ion battery versus its capacity and cycle life. The vertical axis represents capacity and the horizontal axis represents cycle life. The curves depicted by the different points represent the charging and discharging of the battery at different rates. The relationship between capacity and cycle life. C is the charge and discharge rate data related to the capacity of the battery. Suppose a battery has a capacity of 1000 mAH. If it is charged or discharged with a current of 1000 mA, the time for charging or discharging all of its power is one hour. At this time, C represents 1000 mA, and 2C represents 2000 mA. According to these definitions, this figure tells us the following information: The initial capacity of this battery is 900mAH. If it is charged and discharged with 1C or 900mA current, after 500 cycles, its capacity is about 780mAH; if 2C is used, When it is charged and discharged by a current of 1800 mA, its capacity drops to about 500 mAH after 500 cycles. Information like this left me with the impression that a lithium-ion battery, if charged and discharged at a rate of 1 C, has a capacity of 80% of its initial capacity after 500 cycles. I don't just use it like this. I often pass this information to my peers in the industry. Unfortunately, this information is not completely accurate. It just represents the characteristics of a certain type of battery. The most recent information is I updated my concept and made me wake up from my own myths. Solderless Breadboard,400 Point Breadboard,3M Solderless Breadboard,Solderless Breadboard Kit Cixi Zhongyi Electronics Factory , https://www.zypcbboards.com
