携帯電話業界におけるリチウム電池技術 - リチウムイオン電池機器
2022年10月11日
In the 1980s and 1990s, people's communication basically depended on letters, telegrams and telephones. Among them, telephones were mainly landlines. If anyone installed a landline, they would immediately become the envy of the left and right. However, with the continuous development of science and technology, the landline phone was gradually replaced by the mobile phone. At that time, the most impressive thing was the "Big Brother", because it was the pioneer of mobile communication and the symbol of identity at that time. Up to now, the "big cell phone" has already become an antique. Smart phones not only have many advanced technologies, but also become mainstream products with their portability, thinness and ease of use. In our daily life, smart phones can help us achieve a variety of purposes, such as leisure and entertainment, real-time navigation, work and study, etc., which brings us a lot of convenience in life. However, there is no perfect thing in the world. While smart phones bring many benefits to people, their biggest disadvantage is the battery. Most smart phone batteries can only be used for two days at most. If they are used moderately or play games for less than a day, they have to be charged. Some even charge twice a day. Although the current mobile phone battery is so ineffective, it is crucial for mobile phones, Because cell phones without batteries are just like "corpses", and as the power source of cell phones, batteries also have their own experiences.
Mobile phone batteries are generally divided into nickel batteries and lithium ion batteries. Among them, nickel batteries have low capacity, memory effect, self discharge, and manufacturing materials have environmental pollution problems, so they have not continued in the mobile phone industry. Although the birth of "lithium-ion battery" makes up for the shortage of nickel battery, and its high-energy and environmental protection characteristics make it the only source power in the mobile phone industry at present, people still have some misunderstandings about the understanding of "lithium-ion battery" on mobile phones, because strictly speaking, lithium-ion battery is not rechargeable. Since it is not rechargeable, what is used on mobile phones? Or what kind of lithium ion battery? The following editor will give you answers one by one.(Lithium - Ion Battery Equipment)
What are lithium-ion batteries and their advantages and disadvantages
First, let's take a look at what a lithium-ion battery is. In fact, strictly speaking, a lithium-ion battery is a lithium primary battery, which contains pure lithium metal and is a disposable, non rechargeable battery. Due to its own high-tech requirements, only a few companies in several countries are producing such lithium metal batteries.
Before the lithium ion battery appeared, the primary battery can be said to be its ancestor. How did the primary battery come into being? This can be traced back to the late 18th century, when Italian biologist Gavani was conducting the famous frog experiment. When he touched the frog leg with a metal scalpel, he found that the frog leg would twitch. After many experiments, Gavani thought that this might be "animal electricity".
However, Fuda, a friend of Gavani, saw this phenomenon. After many experiments, he found that as long as two different metals contact each other and are separated by wet cardboard, leather or other spongy things, no matter whether there are frog legs or not, there is an electric current, thus denying the view of "animal electricity". Because Volta realized that the frog leg contraction was only a manifestation of the discharge process, and the contact of two different metals was the real reason for the current phenomenon. Therefore, Volta listed the order of zinc lead tin iron copper silver gold, which is the famous Volta sequence. In 1800, Volta designed a device called Volta stack based on this principle. Zinc was the negative electrode, silver was the positive electrode, and salt water was used as the electrolyte solution.
The above stories are just the history of the invention of the primary battery. Later, the primary batteries often used by people include zinc manganese dry batteries, zinc mercury batteries, zinc silver button batteries and lithium ion batteries. Among them, lithium-ion batteries originated from Edison, the great inventor. They were made of lithium metal or lithium alloy as cathode materials and used non-aqueous electrolyte solutions. However, due to the very active chemical properties of lithium metal, lithium metal had very high environmental requirements in processing, storage and use, so lithium-ion batteries were not used for a long time in that era. Today, with the development of science and technology, lithium ion batteries have become the mainstream.
Mobile phone batteries are generally divided into nickel batteries and lithium ion batteries. Among them, nickel batteries have low capacity, memory effect, self discharge, and manufacturing materials have environmental pollution problems, so they have not continued in the mobile phone industry. Although the birth of "lithium-ion battery" makes up for the shortage of nickel battery, and its high-energy and environmental protection characteristics make it the only source power in the mobile phone industry at present, people still have some misunderstandings about the understanding of "lithium-ion battery" on mobile phones, because strictly speaking, lithium-ion battery is not rechargeable. Since it is not rechargeable, what is used on mobile phones? Or what kind of lithium ion battery? The following editor will give you answers one by one.(Lithium - Ion Battery Equipment)
What are lithium-ion batteries and their advantages and disadvantages
First, let's take a look at what a lithium-ion battery is. In fact, strictly speaking, a lithium-ion battery is a lithium primary battery, which contains pure lithium metal and is a disposable, non rechargeable battery. Due to its own high-tech requirements, only a few companies in several countries are producing such lithium metal batteries.
Before the lithium ion battery appeared, the primary battery can be said to be its ancestor. How did the primary battery come into being? This can be traced back to the late 18th century, when Italian biologist Gavani was conducting the famous frog experiment. When he touched the frog leg with a metal scalpel, he found that the frog leg would twitch. After many experiments, Gavani thought that this might be "animal electricity".
However, Fuda, a friend of Gavani, saw this phenomenon. After many experiments, he found that as long as two different metals contact each other and are separated by wet cardboard, leather or other spongy things, no matter whether there are frog legs or not, there is an electric current, thus denying the view of "animal electricity". Because Volta realized that the frog leg contraction was only a manifestation of the discharge process, and the contact of two different metals was the real reason for the current phenomenon. Therefore, Volta listed the order of zinc lead tin iron copper silver gold, which is the famous Volta sequence. In 1800, Volta designed a device called Volta stack based on this principle. Zinc was the negative electrode, silver was the positive electrode, and salt water was used as the electrolyte solution.
The above stories are just the history of the invention of the primary battery. Later, the primary batteries often used by people include zinc manganese dry batteries, zinc mercury batteries, zinc silver button batteries and lithium ion batteries. Among them, lithium-ion batteries originated from Edison, the great inventor. They were made of lithium metal or lithium alloy as cathode materials and used non-aqueous electrolyte solutions. However, due to the very active chemical properties of lithium metal, lithium metal had very high environmental requirements in processing, storage and use, so lithium-ion batteries were not used for a long time in that era. Today, with the development of science and technology, lithium ion batteries have become the mainstream.
