AG10 battery.Is battery technology stagnating?

　　Brought to you by Electronics Enthusiasts Is battery technology stagnant? This is the best example. The most obvious example is the battery of mobile phones. What people are most worried about now is that their mobile phones are out of battery. Speaking of stagnation, the lithium batteries in mobile phones ten years ago are definitely incomparable to the lithium batteries today. But ten years ago, mobile phones used small black and white screens. Now mobile phones have large color screens of more than 5 inches. In the past, mobile phones only had If you need to make calls or send text messages, you are now heavily dependent on your mobile phone. Communication, games, social networking, and entertainment are all on your mobile phone, and you never leave your phone. It’s not that battery technology is stagnant, it’s just that people’s needs are growing.

　　The most obvious example is the battery of mobile phones. What people are most worried about now is that their mobile phones run out of power. Speaking of stagnation, the lithium batteries in mobile phones ten years ago are definitely incomparable to the lithium batteries today. But ten years ago, mobile phones used small black and white screens. Now mobile phones have large color screens of more than 5 inches. In the past, mobile phones only had If you need to make calls or send text messages, you are now heavily dependent on your mobile phone. Communication, games, social networking, and entertainment are all on your mobile phone, and you never leave your phone.

　　It’s not that battery technology is stagnant, it’s just that people’s needs are growing

　　In response to this problem, it is not that battery technology has stagnated, but essentially that the progress of battery technology has not kept up with the development of electronic products. Compared with current electronic products, taking smartphones as an example, the change is a small change in three months. , a big change can happen in half a year, but what about the battery capacity? It always has that little capacity and is always a lithium-ion battery, so it gives us the illusion that battery technology is stagnant.

　　Battery technology has changed a lot compared to a few years ago. The biggest change is the fundamental change in the built-in materials. First of all, ten years ago, batteries were generally nickel-cadmium batteries. One disadvantage of this battery is the memory effect. , long-term incomplete charging and discharging will leave traces in the battery and reduce battery capacity. The lithium batteries used now do not have this memory effect, so lithium batteries can be charged and used at any time.

　　If current battery technology is to be greatly improved, the battery materials of lithium batteries must be replaced. In recent years, the theoretical energy density of lithium batteries has gradually approached the physical limit. At present, the application of emerging materials to batteries is still in the laboratory, and can only be produced after balancing safety and cost. But at the same time, the emergence of new materials relies on computers to perform various processing operations. Fortunately, computers are advancing very quickly. Still in accordance with Moore's Law, and with the addition of quantum computers, better battery materials will be used. found.

　　Summary: There are some studies and reports on graphene batteries, but most of them are hype about the concept of graphene. They only add a small amount of graphene, a star material, into lithium-ion batteries, which is regarded as doped with graphene. of lithium-ion batteries. Graphene is used in batteries to increase the conductivity of electrolytes, or is directly mixed into negative electrode materials. There are many similar reports of high performance. However, it is difficult to achieve a breakthrough in comprehensive performance, limited by the price and preparation process of graphene materials. , the application of pure graphene electrodes cannot be realized in the short term. For example, the graphene heat dissipation currently used in Huawei mobile phones is not used in batteries, but it can be regarded as the result of research. It is said that Huawei has started research on graphene a long time ago! We hope that we can break through the technical bottleneck as soon as possible and allow us to use higher-density batteries for applications in various fields.

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