The mobile phone battery is an energy storage tool that provides power for the mobile phone, which is composed of three parts: the cell, the protection circuit and the shell.

NiMH batteries are synthesized from hydrogen ions and nickel metal, with 30% more power reserve than nickel-cadmium batteries, lighter than nickel-cadmium batteries, longer service life, and no pollution to the environment. The disadvantage of nickel-metal hydride batteries is that the price is much more expensive than nickel-cadmium batteries, and the performance is worse than that of lithium batteries.

"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the anode material and uses a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been applied for a long time. With the development of science and technology, lithium batteries have slowly become the mainstream.

Lithium batteries were the first to be used in pacemakers. The self-discharge rate of lithium batteries is extremely low, and the discharge voltage is gentle, so that the pacemaker implanted in the human body can operate for a long time without recharging. Lithium batteries generally have a nominal voltage higher than 0 volts, which is more suitable for integrated circuit power supply. Manganese dioxide batteries are widely used in calculators, digital cameras, and watches.

In order to develop varieties with better performance, various materials are being researched to create products that have never been done before.

In 1992, Sony successfully developed a lithium-ion battery. Its practical use has greatly reduced the weight and volume of portable electronic devices such as mobile phones, notebooks, and calculators.

Today's mobile phones have small screens after all, few applications are installed, and the power consumption is far less than that of later smartphones, so the application of nickel-metal hydride batteries is still very extensive, but Jiang Hui knows that with the higher and higher requirements for batteries in mobile phones, nickel-metal hydride batteries will soon be eliminated in the field of mobile phones. At the time of Jiang Hui's rebirth, all mobile phone batteries were lithium batteries, and there was no nickel-metal hydride battery anymore.

Therefore, Guanghui mobile phone wants to lay out battery products, and it must be the main lithium battery. After all, the mainstream applications of mobile phone batteries, electric vehicle batteries, etc., are lithium batteries.

The working principle of lithium-ion batteries refers to their charging and discharging principles. When the battery is charged, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move through the electrolyte to the negative electrode. The carbon as the negative electrode has a layered structure, it has many micropores, and the lithium ions that reach the negative electrode are embedded in the micropores of the carbon layer, and the more lithium ions are embedded, the higher the charging capacity.

At present, the most mature lithium battery in the industry is still several battery manufacturers such as Sanyo, Panasonic and Sony in Japan, and the price is still relatively high. However, soon the lithium battery manufacturers of the Celestial Empire will rise quickly, with the rapid expansion of the consumer electronics market of the Celestial Empire, the demand for lithium batteries has increased sharply, and a large number of Celestial Empire manufacturers have taken off, and the price of lithium batteries has also fallen rapidly.

When any product cannot be produced in the Celestial Empire, it will appear tall and expensive. Once the Celestial Empire can produce it, this product will quickly become a "cabbage price".

For example, in the communication industry, the switch, which is a key component, was sold abroad for 200,000 yuan before, and when domestic enterprises began to produce, the price quickly dropped to 10,000.

Another example is the reducer for the mill of the cement plant, which has been sold for 10 million units abroad, and the price is only 3 million after localization.

There is also the integrated circuit industry, the 8086 chips needed for computers, which needed to be imported in the early 80s of the last century. Today, when a microelectronics institute made a 6um integrated circuit production process, the market price dropped to 5 yuan.

In everything, we can see the rapid rise of the Celestial Empire and the rapid development of science and technology.

"Lao Guan, I arranged Guanghui Investment to learn about the domestic mobile phone battery industry, how is your research?", Jiang Hui asked Guan Weidong.

"Mr. Jiang, the investigation is almost complete, I will send you the detailed investigation report later, and I will first verbally introduce to you the investment suggestions given by our team," Guan Weidong said.

"The efficiency is good, this year's task is relatively heavy, in addition to going to South Korea to buy game manufacturers, in China to invest in mobile phone-related batteries, screens, cameras and other related manufacturers," Jiang Hui said.

"I'm happy when the task is heavy, which shows that the company has sufficient funds and good development prospects," Guan Weidong said.

"You can rest assured, now the group has more than one billion dollars provided by Guanghui Games every month, which is enough for Guanghui to invest in a big deal," Jiang Hui said.

"A while ago, I heard that the group was going to build the Guanghui Building, and I thought that Mr. Jiang, you had begun to shift the group's focus to real estate," Guan Weidong said.

"Although real estate is also a promising sunrise industry, our group will not focus on it, of course, it is still possible to earn a high profit from real estate," Jiang Hui said.

No one knows better than Jiang Hui how much space there is in the real estate industry and how high the housing prices will be in the future, so Jiang Hui will definitely not ignore the profits of this area. However, the water in the real estate industry is too deep, and Guanghui Group may not be able to play around, and Jiang Hui does not want to bother to play deeply.

There is no authoritative statistics on how many official seals a real estate project has to be stamped. Someone once pointed out that bidding for a real estate project requires 166 official seals and 94 large and small fees. Each seal is signed by clerks, section chiefs, and division chiefs, involving more than 180 handlers. Jiang Hui was big when he saw this, and he was still happy to make money in the emerging industry.

"Then I'm relieved. Next, I will give Mr. Jiang a general report on the domestic mobile phone battery industry", Guan Weidong said.

"By the end of 2004, there were 1.7 billion mobile phone users in the world, with a penetration rate of 26 percent, and global mobile phone sales reached 200 million in 2004, much higher than 200 million in 2003. As of March 2005, there were 500 million mobile phone users in the Celestial Empire, with a total of 17 million new users, and the mobile phone penetration rate reached 29 percent," Guan Weidong said.

"At present, only a few models of mobile phone batteries can be universal, and the vast majority of mobile phones and supporting batteries are matched one by one, even between different models of mobile phones of the same brand, which stimulates the market demand for new models of mobile phone batteries. As the functions of mobile phones become more and more abundant, the power consumption of mobile phones is also increasing, and in order to ensure sufficient daily use time, higher requirements are put forward for the capacity of mobile phone batteries," Guan Weidong said.

"In 2004, in the statistical results of mobile phone battery cell demand, lithium battery cells were 8.4 billion, accounting for 87%, and nickel-metal hydride battery cells were 2.8 billion, accounting for 13%. In 2005, it is predicted that the proportion of lithium batteries will rise to 95 percent, reaching 900 million, and nickel-metal hydride battery cells will decrease to 5.1 billion, accounting for 5 percent," Guan Weidong said.