Application and classification of 18650 lithium batteries

Application and classification of 18650 lithium batteries

Lithium secondary batteries are widely used in the energy battery industry because of their excellent performance. nmp recovery system Since lithium secondary batteries have developed, they have become widely used in our everyday lives, and rechargeable batteries are becoming increasingly popular with consumers. Pay attention to the energy battery industry, fully understand the battery, and then let us do "for my use", the current 18650 lithium battery has a certain application in the following aspects.

Storage of energy

It is mainly used in base station power supply, n methyl 2 pyrrolidone solvent clean energy storage, power grid energy storage, and home optical storage systems.

Classification by power

The term includes electric urban traffic management tools, electric bicycles, and new energy development vehicles.

The digital age

Mobile phones, tablets, laptops, electric toys, MP3/MP4, headphones, nmp chemical charging babies, airplane models, mobile phone power supplies, etc.

The classification of 18650 lithium batteries can be divided into the following categories.

Sort by battery performance first

Power and energy batteries both have their own distinct characteristics. Energy batteries are known for their high energy density and primarily used for producing high levels of energy. On the other hand, power batteries have a high power density and are typically utilized for instant high-power output. With the rise of plug-in hybrid electric vehicles, there is a demand for lithium batteries that can store a large amount of energy and enable pure electric driving over a certain distance. In addition to this, these batteries need to possess strong power capabilities and low power input when operating in hybrid mode.

In simple terms, energy type is similar to marathon runners, in that to have endurance, we need high capacity, but performance design requirements for high current through discharge technology aren't that high; for the power type is to improve the sprinter, fight is the outbreak, but endurance must also have, otherwise the capacity will not be able to run as far as needed.

Depending on the electrolyte material

Lithium-ion power batteries can be classified into liquid lithium-ion batteries (LiBs) and polymer lithium-ion batteries (PLBS).

The liquid electrolyte used in liquid lithium-ion batteries is the same as the liquid electrolyte used in power batteries. Solid polymer electrolytes replace polymer lithium-ion batteries, which are available either dry or colloidal. At present, polymer gel electrolytes are most commonly used. Solid-state batteries consist of electrodes and electrolytes that are solid.

Classification of products based on their appearance

There are three types of packaging: cylindrical, flexible, and square.

Outer packaging for cylindrical and square items is usually made of steel or aluminum. Flexible packaging is usually made of aluminum-plastic film. Soft bags are also square. Aluminum-plastic film soft bags are called soft bags on the market, and polymer batteries are sometimes called soft bags.

Model numbers are generally five digits for cylindrical and lithium-ion batteries. The first two Chinese numbers are the diameter of the battery, and the middle two student numbers are the height of the battery. For example, the 18650 lithium battery measures 18 millimeters in diameter and 65 millimeters in height.

According to the pole material classification, 4

Battery cathode material: lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide (binary battery: lithium nickel manganese oxide/lithium nickel cobalt oxide), ternary battery: lithium nickel cobalt manganese oxide battery (NCM), lithium nickel cobalt aluminate battery (NCA).

The anode materials are lithium titanate battery (LTO), graphene battery, and carbon nanofiber battery.

Graphene is mainly used in graphene-based batteries, i.e. graphene paste is applied to the plate or graphene coating is applied to the diaphragm. Lithium nickel and magnesium batteries are virtually unheard of.

liquid electrolyte Flexible packaging

0