Lithium battery's relationship with mobile phone is indispensable

A, why mobile phone use lithium batteries?

Mobile phone life difference is the manufacturer's question?

At present, we use most of the cells from an old model - 1800 galvanic cell. In recent 300 years, people are constantly looking for the positive and negative materials, improve the energy density, popular both batteries, nickel cadmium battery and lithium battery, are material to upgrade. Principle and similar battery more than 300 years ago.

In fact, the first mobile phone use is nickel metal hydride batteries, rather than the lithium battery. In 1992, SONY invented the rechargeable Lithium ion batteries Later, lithium batteries gradually into our computers, mobile phones, the mainstream batteries.

Battery by positive, negative, electrolyte, electrolyte less species, one kind is the traditional liquid electrolyte, we call the lithium ion battery, do not add other names, when there is one kind is organic polymer electrolyte, but have not liquid organic polymer, we call Lithium polymer battery Or lithium ion Polymer battery. This is two kinds big.

Under two broad categories, depending on the materials of the battery level is different grade (negative materials are mostly graphite), divided into lithium cobalt acid lithium ion (polymer, behind is not added, similarly hereinafter) batteries, lithium manganese acid lithium ion batteries, the ternary material of lithium ion battery, lithium iron phosphate lithium ion batteries. There, cobalt acid lithium cycling times less, security is poorer, but capacity is good, relatively cheap, use most, the vast majority of mobile phone batteries are on the market Cobalt acid lithium batteries.

Ternary material performance is better, in addition to the peak current overload, other indicators are good, but expensive, with less.

Manganese acid lithium security good, overload is good also, but not capacity, no life, with fewer.

Life is best, lithium iron phosphate overload is big, but not capacity, the price is expensive, in addition to basic did not use electric cars and rc. That is to say, our current mobile phone batteries, is the better material is to use the capacity, unless another 1992 SONY lithium ion battery this breakthrough invention, otherwise can only be slowly lift.

Second, what influence the battery capacity?

Mobile phone life difference is the manufacturer's question?

In fact, the battery energy density is a natural, our daily use of energy, in the final analysis is the electronic transfer. We burn coal, oil burning, from the chemical point of view, is a REDOX reaction, including electron transfer.

We use the battery and electron transfer, and learned to know the junior high school chemistry concept of valence, an atom, electron transfer number is limited. Only in the periodic table of the elements in the first two lines of light atoms is likely to become a good energy carrier. And chemical element periodic table before the two line elements only 10, hydrogen, helium lithium beryllium, boron, carbon and nitrogen oxygen fluorine neon. Helium and neon are inert gases, oxygen and fluorine are antioxidant, hydrogen, carbon, boron, beryllium, lithium, we used to do only lithium batteries at present.

Originally it is dangerous to lithium metal, SONY invented lithium lithium ion battery that can be used in rechargeable batteries. And lithium battery inside not only compounds, but also needs to have the cathode material, need to have the electrolyte. Need to have a case, the result is only contains about 2% by weight of the batteries, lithium material this material all let out, also don't have much power, needless to say, in order to stabilize, and about 50% of the battery can't be put.

In the end, is human to do a lot of a lot of effort, make out all kinds of new materials, including a recent graphene, carbon nanotubes, but can be industrialized production of battery energy density can increase 10% per year to thank god.

Third, didn't mean to kill

Mobile phone life difference is the manufacturer's question?

In fact, the news about battery material progress every year even every month. Industrialization needs a process, but to actually lithium-ion batteries from invention to industrialization but also a few years. Is there on a breakthrough, will soon be transformed.

So-called capital big alligator hinder technological progress is not established, because from lead-acid batteries, to the nickel metal hydride batteries, from nimh batteries to today's lithium ion battery, is a big breakthrough, if big alligator has the ability to kill the progress, so today we still use lead-acid batteries.

For apple, millet the integrator. They don't have ability to decide the upstream industry chain. Samsung, LG, god, what kind of batteries, BYD to them they can do what kind of mobile phone batteries. In fact, apple's life in the mobile phone is not bad. Mobile phone battery in fact has been in progress, in the past 10 years, the energy density of the cell phone battery has increased twice as much. The past dopod 696 large battery only 1200 MAH, now 3000 MAH battery is a big deal. Only modern smart phones because of high-performance processor, big screen, power consumption is much higher than feature phones, battery progress, we still feel inadequate battery.

In addition, the mobile phone of lightweight also limits the range. Now it has developed 6000 MAH, range of mobile phones, thickness of 11.9 mm, is still considered too thick, and the function of machine age 15 mm of mobile phone is normal.

You require frivolous, demands large screen, high speed processor, also calls for life, battery said "male and female servants is really can't do."

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