Reason analysis of slow development of lithium battery technology

For mobile phones, tablet computer users, the biggest worry in addition to the Internet, I am afraid that the electricity is not enough, charging time is too long!

In the past seven years, the mobile phone has completed the transformation from the function machine to the intelligent machine, the role of mobile phone 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 the further development of mobile phones is an important reason.

History and Status quo

Lithium batteries were most early used in pacemakers. The low self-discharge rate of lithium batteries and the smooth discharge voltage allow the pacemaker implanted in the body to operate for a long time without recharging. Lithium batteries typically have a nominal voltage above 3.0 volts and are more suitable for integrated circuit power.

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, the lithium-ion battery technology used by all electronic devices, whether smartphones, tablets, or today's unusually hot Tesla electric cars, is not fundamentally different from the technology used by Sony. Lithium-ion battery technology seems to go into a dead end, from the electronics industry, the impetus of all of a sudden become the industry's regulators.

Tesla's oversized lithium battery pack

But do not blindly pessimistic, in these 20 years, lithium battery technology is not completely stagnant, after years of technology expansion, lithium battery technology has made considerable progress. Especially in the charging efficiency, battery capacity, heating and cooling, the traditional lithium battery has also been better, in addition, with the rise of electric vehicle industry, will accelerate the promotion of lithium battery technology innovation and development, but to achieve revolutionary changes, but also need to wait slowly.

Technical bottlenecks

Now that lithium-ion battery technology has developed into a bottleneck, is there any other type of chemical battery that can replace it? For now, the answer is no.

Lithium battery is by far all commercial use of two chemical batteries, the most excellent performance of the battery, its characteristics are: higher than energy, long cycle life, with a wide range of charging power, the rate of discharge performance is good.

Although the advantages of lithium batteries, but to achieve large-scale use of large capacity will still bring many problems. The number of lithium ions in lithium batteries is fixed, if you want longer battery time, you have to increase the number of batteries, but this means heavier equipment, greater calorific value and higher explosive potential, which is also a large number of mobile phones after heavy use, become a "warm hand treasure" the main reason. If you want to be more secure or more portable, you must sacrifice the battery count and the time of use.

Oppo Flash Charging Technology

Since no other substance has a better battery performance than a lithium-ion battery, many handset manufacturers began to change a way of thinking to solve this problem, such as Oppo launched the VOOC Flash technology, according to the official introduction can be charged in 30 minutes up to 75%, while solving the heat problem of fast charging, to ensure absolute safety, This method belongs to the improvement of charging efficiency, and it is worth popularizing vigorously. For example, the wireless charging technology driven by Nokia, although not very mature, charging efficiency has yet to be improved. But the idea is very good, the future can be to the lack of awareness of a wide range of wireless charging technology development, break through the inherent charging boundaries.

Future

The future development of lithium battery technology will be affected by both positive and negative factors: One aspect is the smart phone, electric vehicles and other emerging industries, continue to expand demand, promote lithium battery industry share of high-speed growth, while the technology companies to increase battery technology research and development, which will greatly promote the development of lithium battery technology; With the increase of the energy problem of human society, People's thirst for new energy is very urgent, there will be a more efficient product to replace lithium battery in the future. However, these two aspects of the impact of the former is now inevitable, the latter is unknown.

Summarize

At this stage, there are many new battery solutions, battery technology is a long update, in addition to the technology can reach the commercial level, but also need to replace a large number of electronic equipment on the market battery. But we still want this day to come.