Source: 2020 -
04 -
10 thus hits: mobile power battery in-depth analysis of 18650 battery more easily?
First, you got fooled by the propaganda of the electrical network, many mobile power supply manufacturers in product promotion tend to emphasize their polymer battery cell is high quality, safety performance is better than other brands of batteries, and give a lot of shocking batteries' bang 'photos, so concerned about product safety consumers how to choose?
Mobile power battery in-depth analysis of 18650 cells more easily?
Without access to relevant professional knowledge, when consumer is buying the mobile power supply is more vulnerable to manufacturers of propaganda.
The author here for you to analyze common mobile power battery, and expose the false propaganda behind the battery, help you choose your mobile power products.
At present, mobile power supply adopts lithium ion battery as battery.
Lithium ion battery is a rechargeable battery, its working principle is lithium ion move between the positive and negative.
Mobile power supply used in lithium ion battery mainly has two kinds: liquid lithium ion battery and lithium ion battery.
18650 explosion?
Mobile power merchants promote mobile power explosion-proof battery analysis (
Taobao screenshots)
What is a liquid lithium ion battery and lithium ion battery?
If security companies claim is different, why there are so many application?
Which of the following is the author you detailed analysis.
Liquid lithium ion battery cathode material for lithium compounds, anode materials for carbon (
Graphite)
。
As the electrolyte, electrolyte battery does not contain pure metal lithium.
Mobile power battery in-depth analysis of 18650 cells more easily?
18650 battery and lithium ion battery soft packages are commonly used in liquid lithium ion battery liquid lithium ion battery of cobalt acid lithium batteries, namely LiCoO2 cathode material, usually in the form of 18650 cells, namely, 18 mm in diameter, length 65 mm cylindrical battery, the shell is usually steel shell, paint manufacturers use soft envelope, made into the shape of a more diversified.
Mobile power battery in-depth analysis of 18650 cells more easily?
18650 battery internal structure cobalt acid lithium batteries, for example, its energy density is about 140 mah/g, cycle life over 300 times,
In 18650, the most mature technology battery can provide more than 1000 cycles)
, the current technology is relatively mature, simple production process, the product cost is low, use very extensive.
Mobile power battery in-depth analysis of 18650 cells more easily?
18650 battery has an internal electrode and diaphragm most laptops use 18650 batteries.
Tesla's electric cars also use 18650 batteries.
More than half of mobile power supply is also used by 18650 battery as the battery.
In addition, most of the digital products, such as bluetooth headsets and wireless devices use soft package lithium-ion batteries.
The safety of the battery is guaranteed, but inferior to second-hand battery should be avoided as well.
Mobile power battery in-depth analysis of 18650 cells more easily?
Built-in battery, portable power supply 18650 18650 many suppliers mentioned no security is also a problem of the battery.
The positive anode is equipped with pressure relief valve, when the pressure can pop-up, timely release the pressure, reduce the occurrence of danger.
18650 battery accidents mostly, caused by the use of inferior secondary battery products are widely used is the more common causes of the accident is not a product safety performance is poor.
Polymer lithium-ion batteries, polymer lithium ion battery (
LIP, also called lithium ion polymer batteries, lithium polymer battery)
The anode materials is lithium compound, the cathode material is carbon (
Graphite)
, solid or gel polymer electrolyte, the battery does not contain pure lithium metal.
Mobile power battery in-depth analysis of 18650 cells more easily?
Polymer lithium ion battery (
Images provided by wikipedia)
Mobile power battery in-depth analysis of 18650 cells more easily?
Polymer lithium ion battery (
Images provided by wikipedia)
Common in polymer lithium ion battery is nickel cobalt manganese battery, namely LiNiCoMnO2, its appearance is flat.
Nickel cobalt manganese batteries, for example, its energy density is 160 mah/g, cycle life is more than 500 times, because of high production process requirement, the cost is high, is also a main reason of restricting its development.
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