Our lithium ion rechargeable cells are manufactured in a square or cylindrical shape. The cylindrical ones are mainly intended for use in laptops. Our high capacity rechargeable cells are available in a variety of models, and please refer to the PDF at the bottom for detailed model information.+ More
With a wide selection of sizes, capacities and discharge rates, Li-polymer cells are processed to produce finished batteries for use in mobile phones, digital electronic products, tablet PCs, navigation systems, satellite positioning systems, model aircraft, electric tools, etc.+ More
The high power lithium battery uses LiNiCoMnO2 as the positive electrode material. This material system enables the product to provide high rate discharge performance. In addition, the lithium rechargeable battery is more suitable for large battery packs made up of multiple single cells.+ More
Our product makes charging convenient wherever you go. With a variety of connectors, our product can charge mobile phones of all models in the market. In addition, our external battery is also suitable for charging MP3, MP4, iPad, and other electronic products requiring a 5V input.+ More
The solar panel has no built-in battery. It can be directly connected to devices for charging, or connected to USB universal charger or power bank to further charge all kind of devices, such as field head lamp, flashlight, camping lights, GPS, digital camera, smartphone, interphone, iPhone, iPod (mp3/mp4), etc.+ More
Lithium Ion Battery
The lithium ion battery is a kind of rechargeable battery in which lithium ions move between the negative electrode and positive electrode during charging and discharging. This is why the concept of rocking-chair battery comes into existence. The Li-ion battery is known for long cycle life, high energy density, and low self discharge. It is extensively used in various electronic products, including mobile phones, cameras, laptops, tablet PCs, navigators, GPS, and more. Another important application is new energy vehicle. Today nearly all auto companies are developing Li-ion battery powered new energy vehicles. In fact, some companies have already mass-produced hybrid and pure electric cars powered by lithium ion batteries.
The main construction of lithium ion rechargeable battery includes positive electrode, negative electrode, electrolyte, separator diaphragm, and other components.
The positive electrode is generally made from LiCoO2, LiNiO2, LiMn2O4, or Li(NiCoMn)O2. Due to good cycle performance and simple preparation, LiCoO2 is the most commonly used one. LiNiO2 is not widely used as a result of unstable property and difficult preparation. LiMn2O4 is a good material as it is cheap and easy to prepare. However, low energy density and rapid performance degradation under high temperature conditions greatly affects applications of this material. Li(NiCoMn)O2 is a conventional positive electrode material.
The common material for negative electrode is graphite, which contains natural graphite and manmade graphite.
The electrolyte is mainly a mixture of LiPF6, carbonic ester and some functional additives.
The separator diaphragm is usually made from porous organic membrane, mainly PE and PP. The preparation method is divided into dry type and wet type.
Other components include case, tags, etc.
The structure of rechargeable Li-ion battery is available in winding type and laminate type. The winding type is more popular. This type of rechargeable lithium battery is made by orderly placing positive electrode, separator, negative electrode, separator, and then winding them into a cylinder. For making lithium battery of laminate type, first pile positive electrode, separator, negative electrode, separator, positive electrode, etc., then weld together and draw forth all positive electrodes and all negative electrodes.