source:other news
release time:2023-03-13
Hits:0
Popular:

In the early research of lithium-ion batteries, metal lithium was mainly used as the negative electrode. However, during the charging process, lithium precipitation occurred on the surface of the negative electrode, which eventually led to battery short circuit and caused safety problems. The application of lithium intercalation compounds in the negative electrode is the key to the successful commercialization of lithium ion batteries. At present, carbon anode materials are more mature.
Carbon anode materials mainly include graphite, graphitized materials and amorphous carbon materials. Graphite material is the earliest commercialized lithium-ion anode material, including natural graphite and artificial graphite. The carbon atoms are bonded by SP2 hybrid orbital, arranged in hexagonal shape, and extended in two-dimensional direction. The layers are combined by van der Waals force to form layered microcrystalline structure. At room temperature, lithium can be embedded into every six carbon atoms in pure graphite materials. The theoretical expression is LiCs, and the theoretical capacity is 372mAh/g. The interlayer spacing of graphite after lithium intercalation increased from 0.335 nm to 0.370 nm.
The degree of graphitization of carbon materials, also known as the degree of order, will affect the actual lithium intercalation capacity of materials. Table 1-1 shows the crystallinity and actual lithium intercalation capacity of several graphite materials. Among them, the specific capacity and crystallinity of natural graphite are higher than those of the three artificial graphite materials in the table, but the capacity retention rate and cost of natural graphite materials are not as high as that of artificial graphite. In addition, the particle size, specific surface area and surface functional groups of graphite materials also affect the electrochemical properties of graphite materials.
Amorphous carbon materials mainly include hard carbon 1] and soft carbon [], which have high specific capacity. However, during the first lithium intercalation process, there is a large irreversible capacity loss, which limits its commercial application.
Among non-carbon materials, metal oxide materials, silicon-based materials, alloy materials and metal sulfide materials are mainly studied at present.
Read recommendations:
lithium batteries for boats wholesaler
HB-S1200 1200W Waterproof IP54 Solar Portable Power Station Support Wireless Charge
Samsung INR 18650 Batteries: High-Performance Cells for Industrial and Commercial Applications
Can the LiFePO4 battery for vehicles exceed the 600km range?
Last article:High capacity battery.marine battery for trolling motor
Next article:Cathode material of lithium ion battery.12 volt deep cycle marine battery
related suggestion
lifepo4 battery 12v 200ah
2023-04-07lithium batteries for boats wholesale
2023-03-22solar battery storage system manufacturer
2023-03-20lithium deep cycle marine battery company
2023-04-07deep cycle trolling motor battery
2023-04-07solar energy storage batteries company
2023-04-07solar generator for home
2023-05-08solar generator for camping
2023-05-08trolling motor battery
2023-05-08solar powered generator
2023-05-08solar battery for house
2023-05-08solar battery generator
2023-05-08Wall Mount Rack Home Energy Battery Pack 16S2P 51.2V 100Ah Cylindrical Cell
2022-10-1951.2V 65Ah LiFePo4 Battery Pack IP65 Waterproof for Golf Cart
2022-09-0912V 150Ah Rechargeable Lithium Battery for Marine Boat
2023-02-14Rechargeable Lithium Ion Battery Pack for Medical Device
2022-10-1821700 3.7V Lithium Ion Battery 4800mAh 3C
2025-06-05The Rise of High-Capacity Batteries and Global Awareness
2025-03-20Why Samsung 21700 Batteries Are the Gold Standard for High-Performance Applications
2025-05-21A Complete Guide to 16V Lithium Batteries
2025-03-12A Comprehensive Guide to Choosing the Right 18650 Battery for Your Business_复制
2025-03-13Lithium vs. Sodium Batteries: A Comprehensive Comparison
2025-03-12Lithium power battery charging voltage.best portable power station
2023-07-123C lithium ion battery solution
2022-10-1412V to 48V lead acid can replace modular batteries.deep cycle trolling motor battery
2023-05-09Electric vehicle power battery.marine battery for trolling motor
2023-08-11Composition of electric vehicles.best trolling motor battery
2023-08-11