in the past seven years, the mobile phone has completed from the function to the Intelligent Machine transformation, the role of mobile phones in life is becoming more and more important. However, the rapid development of mobile phones, performance and other aspects have been rapid development, but battery technology has been slow development, which has become a constraint on mobile phones further development of the important reason.
history and current situation
The earliest use of lithium batteries is in pacemakers. The advantages of low self-discharge rate of lithium battery and gentle discharge voltage make the implanted pacemaker capable of long-term operation without recharging. Lithium batteries generally have a nominal voltage above 3.0 volts, which is more suitable for IC power supply.
1991 Sony successfully developed lithium-ion batteries. Its commercialization, so that people's mobile phones, notebooks, calculators and other portable electronic equipment, the weight and volume greatly reduced. But after nearly 20 years of development, whether it is smart phones, tablets, or today's unusually hot Tesla electric vehicles, all electronic equipment used in lithium-ion battery technology, and the Sony company developed the lithium battery in the technology use of no essential difference. Lithium-ion battery technology seems to have entered a dead end, from the electronics industry's drivers have suddenly become the industry's constraints.
Tesla's super-large lithium battery pack
But also do not blindly pessimistic, in this 20 years, lithium battery technology is not completely stagnant, after years of technology development, lithium battery technology has made considerable progress. Especially in the charge efficiency, battery capacity, heating and cooling, the traditional lithium battery has also become more and more good, in addition, with the rise of the electric vehicle industry, will accelerate the development of lithium battery technology, but to achieve revolutionary change, but also need to wait slowly.
Technical Bottlenecks
Since lithium battery technology has reached the bottleneck, is there any other type of chemical cell that can replace it? For now, the answer is no.
Lithium battery is by far all commercially used two chemical batteries in the best performance of the battery, its characteristics mainly include: high than energy, long cycle life, has a wide range of charging power, good performance, such as magnification discharge.
Although there are many advantages of lithium batteries, there are still a lot of problems in wanting to realize large-scale large-capacity use. The number of lithium ions in lithium batteries is fixed, and for longer battery life, it is necessary to increase the number of batteries, but this means heavier equipment, greater heat and higher thermal explosion possibilities, which is the main reason why many mobile phones have become a "warm hand" after heavy use. If you want to be safer or more portable, you have to sacrifice the amount of battery and the time it takes.
Oppo Flash Charging Technology
As there is no other material for the battery performance is better than lithium batteries, many mobile phone manufacturers began to change a way to solve this problem, such as Oppo launched the VOOC flash charging technology, according to the official introduction can charge up to 75% in 30 minutes, while solving the rapid charging of the heating problem, to ensure absolute safety, This method is to improve the efficiency of charging, it is worth popularizing vigorously. For example, Nokia-led wireless charging technology, although not very mature, charging efficiency has yet to be improved. But the idea is very good, the future can be non-aware of the wide range of wireless charging technology development, breaking the inherent charging limits.
Future
The future of lithium battery technology will be affected by both positive and negative aspects: one is the smart phone, electric vehicles and other emerging industries, continue to expand demand, promote the lithium battery industry share of high growth, while the technology companies to increase battery technology research and development, which will greatly promote the development of lithium battery technology; With the human social energy problem intensified, people's thirst for new energy is very urgent, there will be a more efficient products in the future to replace lithium batteries. However, these two aspects of the impact of the former is inevitable, the latter is unknown.
Summary
At this stage, there are many new battery solutions, battery technology is a long-lasting, in addition to the technology can reach the commercial level, but also need to replace the market a large number of electronic products equipment batteries. But we still hope that this day will come.
Many factors restrict the slow development of lithium battery technology