23 Years' Battery Customization

What is the difference between ternary power battery and lithium battery?

Jun 03, 2019   Pageview:997

The battery is mainly lithium as the other pole. These batteries generally use liquid electrolyte. Nowadays, it is mainly based on LiPF6 and LiClO4 dissolved in DMC:EC ('t know if it is used on GalaxyRound or LGGFlex. Of course, there are lithium batteries with all-solid electrolytes such as LiPON, NASICON, perovskite, LiSICON, such as ceramic electrolytes with high conductivity or amorphous materials. If classified, they should be classified as lithium secondary batteries. But this is already an extension of the concept. Secondly, the lithium polymer battery box lithium battery is slightly different in packaging. The lithium battery is generally a steel shell (18650 or button type 2320), and the lithium polymer battery is packaged with an aluminum plastic packaging film, that is, a soft pack battery.

 

Lithium batteries are a kind of lithium metal or lithium alloy as a negative electrode material. Because of the very active chemical properties of lithium metal, the processing, storage and use of lithium metal are very demanding on the environment. The negative electrode of the lithium ion battery is an intercalation structure material such as graphite. In the battery, lithium ions move in the positive and negative electrodes, so it is much safer than the lithium battery. Say again

 

What are the testosterone titles?

 

The concept of lithium batteries includes "lithium ion batteries" and "lithium polymer batteries." Lithium-ion batteries are classified into liquid electrolyte lithium ion batteries and polymer electrolyte lithium ion batteries according to the normal temperature conditions in the electrolyte chamber. A polymer battery refers to an electrolyte that is in a solid or gel state and is "advanced" than a liquid electrolyte used in ordinary lithium ion batteries. In production, the liquid electrolyte is injected into the liquid electrolyte after the core is finished, and the polymer battery is coated before the positive and negative laminates before packaging with aluminum plastic. On the positive and negative electrodes or after the coating, the liquid electrolyte is injected at a temperature slightly above room temperature, and after the room temperature, the electrolyte becomes a gel state (polymer state).

 

Ternary refers to the name of the positive electrode material inside the lithium battery. The ternary material is lithium nickel cobalt manganese oxide Li(NiCoMn)O?, a ternary composite positive electrode material precursor product, which is made of nickel salt, cobalt salt and manganese salt. The ratio of nickel cobalt to manganese can be adjusted according to actual needs. 18650 refer to the cylindrical battery exterior dimensions: 18 refer to the battery diameter of 18.0mm650 refers to the battery height of 65.0mm, used in mobile phones. Lithium batteries are more versatile, and most of the batteries on the market are not detailed here.

 

Ternary refers to the name of the positive electrode material inside the lithium battery. The conventional battery positive electrode material is lithium cobaltate LiCoO2, and the ternary material is lithium nickel cobalt manganese oxide Li(NiCoMn)O2, a ternary composite positive electrode material precursor product, which is made of nickel salt, cobalt salt and manganese salt. The ratio of nickel-cobalt-manganese can be adjusted according to actual needs. The battery with ternary material as positive electrode is safer than lithium cobalt oxide battery, but the platform is too low, which is used on mobile phones (the cut-off voltage of mobile phone is generally around 3.4V). The feeling of insufficient capacity 18650 refers to the cylindrical battery exterior dimensions: 18 refer to the battery diameter of 18.0mm650 refers to the battery height of 65.0mm. Other cathode materials use more than three yuan, there are lithium cobaltate, lithium manganate, lithium iron phosphate, NCA and so on.

 

Lithium batteries refer to a wide range of large types of lithium batteries, which can be called lithium batteries. According to the scientific name, the lithium battery we usually say should be called lithium ion battery / lithium secondary battery, with the corresponding anode material.

 

The positive electrode materials of lithium ion batteries mainly include lithium cobaltate LiCoO2, lithium manganate LiMn2O4, lithium nickelate LiCoxNiyMnzO2, ternary materials, lithium iron phosphate LiFePO4 and the like. The positive electrode uses a ternary material called a ternary lithium battery;

 

The main advantage of the ternary lithium battery is that the energy density is higher than other materials;

 

The positive electrode material of the ternary lithium battery is further divided into NCA nickel cobalt aluminum and NCM nickel cobalt manganese;

 

Most of the ternary materials are NCM. Generally speaking, the ternary lithium battery refers to NCM. NCM foreign representative manufacturers are SDI, SKI, and in China are mainly Lishen, Huitong Tianxia, BAK, Wanxiang, Delangeng and so on. Tesla adopts NCA18650 type, NCA has relatively strong stability and strong cycle performance; however, in the production process, since Al is an amphoteric metal, it is not easy to precipitate, so there is a threshold in the process. Since the content of aluminum in NCA is too small, it is also often referred to as a binary material.

 

The ternary material NCM product model ranged from 111 ternary (N:C:M=1:1:1) to 433,532,622,811. As the nickel content increases, the battery energy density is correspondingly increased.

 

The ternary polymer lithium battery refers to a lithium battery using a nickel-cobalt-manganate (Li(NiCoMn)O2) ternary positive electrode material for the positive electrode material, and a ternary composite positive electrode material precursor product, which is a nickel salt, a cobalt salt, a manganese salt. As raw materials, the ratio of nickel-cobalt-manganese can be adjusted according to actual needs. The battery with ternary material as positive electrode is safer than lithium cobalt oxide battery, but the voltage is too low, which is used on mobile phones (the cut-off voltage of mobile phone is generally around 3.0V). ) There will be a noticeable lack of capacity.

 

The ternary polymer lithium battery refers to a lithium battery using a lithium nickel cobalt manganese ternary positive electrode material for the positive electrode material. There are many kinds of positive electrode materials for the lithium ion battery, mainly lithium cobaltate, lithium manganate, lithium nickelate, and ternary materials, lithium iron phosphate and the like. At present, the ternary material battery replaces the widely used lithium cobalt oxide battery, and is widely used in the field of notebook batteries.

 

The material with relatively balanced capacity and safety has better cycle performance than normal lithium cobaltate. Its nominal voltage is only 3.5-3.6V in the early stage due to technical reasons. However, there are restrictions on the scope of use, but until now, with the formulation with continuous improvement and perfect structure, the nominal voltage of the battery has reached 3.7V, and the capacity has reached or exceeded the level of lithium cobalt oxide battery.

 

SANYO, PANASONIC, SONY, LG, and SAMSUNG have launched batteries for ternary materials. A considerable number of notebook battery lines have replaced the previous lithium cobalt oxide batteries with batteries of ternary materials, SANYO. In the SAMSUNG column battery, the production of lithium cobalt oxide batteries turned to ternary cells was completely discontinued. At present, most of the small high-power batteries at home and abroad use ternary cathode materials.

 

The page contains the contents of the machine translation.

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