What is the difference between liquid lithium batteries and polymer lithium batteries?

How do we classify mobile phone lithium battery? (Hereinafter lithium ion batteries are abbreviated as lithium battery) In the field of electronics, lithium-ion batteries commonly have liquid lithium ion battery and lithium ion polymer two kinds

* (18650 refers to the diameter of the battery to 18 mm, length is 65 mm, cylindrical shape of the battery. Although most of the 18650 on market for liquid lithium electricity, but any "polymer li-ion battery safer than 18650 XX" kind of statement is wrong)

What's the difference between them?

First to be sure, the working principle of the two is the same, are embedded by lithium ion, embedded process implementation to charge and discharge, in which lithium ions embedded negative extremely charging, lithium ions from the negative electrode for discharge.

Before the small mobile phone lithium electricity knowledge: have to look at first

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We can see from the above, the lithium battery consists of the anode, cathode and electrolyte (material filled between the two levels of) three of the most basic elements, of course it across the electrodes and prevent direct contact between the diaphragm (lithium ion can be pass, of course, the diaphragm is bad will short-circuit caused explosion oh ~ ~)

And the liquid lithium ion battery and polymer lithium ion batteries main difference between is

1. Material: Polymer lithium battery, the three basic elements of the above should have at least a used polymer materials, such as electrolyte solution into the polyacrylic acid, methyl acrylic acid, etc. These are strange things.

2. The different electrolyte form: liquid lithium ion battery USES mostly liquid organic solvent + conductive salt, these electrolytes and polymer lithium battery is convert into the gel/solid (specific composition watch battery model).

They each have what cow force?

Polymer li-ion battery/liquid lithium electricity simple comparison

Polymer lithium electric liquid lithium electric energy density (Wh/L) > 300200 ~ 280 degree of customizable (shape) it is difficult for flexible light weight (without metal shell) heavier (need to protect the metal shell) security safety more expensive cheap

1. The energy density, energy density, the greater the unit volume can have more capacity. Polymer lithium electricity through the cathode (anode) and the thickness of the diaphragm and other material/improvement, the energy density is now up to 600 wh/L +.

2. Can be customized: polymer li-ion battery in shape is easier to do light, coupled with the need for metal shell package, so it is easier to made into various shapes.

3. Weight: already indicated on this form.

4. Security: li-ion battery in extreme circumstances (such as overcharge/high temperature), severe chemical reactions can occur within, produce a large amount of gas, liquid lithium electricity at this time because of the metal shell of the package, when the internal pressure is quite big shell exploded rupture occurs, and polymer lithium electricity due to the adoption of packaging aluminum film package (or plastic shell), as long as the internal pressure slightly Gao will swell or burst, not explode. But it is important to note whether liquid lithium electricity or polymer li-ion battery burning in extreme cases can occur.

5. Cost: in addition to the cost of materials on polymer li-ion battery is higher than the liquid lithium electricity, due to the higher degree of polymer li-ion battery can be customized, so in the process of design, the manufacture can produce more fees, such as a variety of customized jigs and fixtures, test equipment, etc., polymer lithium electricity costs are higher than shape standard/rule of liquid lithium electricity.

How do mobile phones use separated liquid lithium electricity or polymer li-ion battery?

For light, for capacity, mobile phones are now using polymer lithium ion battery, whether the iPhone that soft package or Nokia before that with a plastic shell, belong to a polymer lithium ion battery.

Before the small mobile phone lithium electricity knowledge: have to look at first

Where can I find a liquid lithium ion battery?

The thick and heavy laptop battery in your family apart, or tear down your father's large toy car (Tesla)

How to use at ordinary times it is safe to polymer li-ion battery (cell phone)?

How to protect polymer li-ion battery or are simple, we just don't put the mobile phone in high temperature, high humidity, and avoid to be used under the environment of sun exposure.

In addition, the lithium electricity charge discharge of avoid by all means, due to polymer li-ion battery in the mobile phone batteries have a protection plate, after full power automatically, so there is no danger of overcharge (protection board has broken the other say), the battery and the use of mobile phones when had better not be used to recharge, otherwise easy to damage to the battery at the poles of the active material, cause the battery capacity attenuation.

Before the small mobile phone lithium electricity knowledge: have to look at first

New polymer li-ion battery (mobile phone) how to activate?

New polymer li-ion battery (mobile phone), as long as the normal charge and discharge 3 ~ 5 times can activate, 12 hours without charge, because the polymer li-ion battery no memory effect, "buy new mobile phone to charge 12 hours" that only the nickel cadmium and nickel metal hydride batteries before effective. Protection board protection, and full of charging circuit is disconnected, you plug the charger is plugged in vain, electricity and can't reach the battery.

Polymer lithium electricity without (mobile phone idle for a long time) for a long time, how to protect?

If the lithium electricity (mobile phone) on one side for a long time need not, had better let the battery keep around 50% of capacity, avoid caused by self-discharge of li-ion battery voltage is too low, destruction of the poles of the active material, lead to capacity loss. It also should be put in dry, shady and cool place, because lithium electricity under the environment of high temperature, high humidity self-discharge rate will speed up more.

Take out again when using normal filling put 3 ~ 5 times can be reactivated.

The page contains the contents of the machine translation.