Powder Compaction Density Meter Powder Compaction Density Particle Compaction Density Meter Compaction Density Tester Compaction Density Meter Lithium ion Battery Compaction Density Graphite Negative Electrode Material Compaction Density GBT 24533 Compaction Density Compaction Density Tester FT-100F Powder Compaction Density Meter Anode Compaction Density Meter Negative Electrode Compaction Density Meter Positive Electrode Compaction Density Meter Cathode Compaction Density Meter Lithium ion Compaction Density Meter Battery Compaction Density Meter Lithium Cobalt Oxide Compaction Density Meter Lithium Manganese Oxide Compaction Density Meter Lithium Iron Phosphate Compaction Density Meter Ternary Material Compaction Density Meter Negative Electrode Material Compaction Density Meter Artificial Graphite Compaction Density Meter Natural Graphite Compaction Density Meter Composite Graphite Compaction Density Meter Automatic Compaction Density Meter Powder Automatic Compaction Density Meter FT-100F Powder Automatic Compaction Density Meter Compacted Density (compacted density) I. The sentence is: Definition: Calculation formula for compaction density: Compaction density=areal density/material thickness. In the design process of lithium-ion batteries, compaction density=areal density/(thickness after electrode rolling - current collector thickness), unit: g/cm3. Compaction density is divided into negative electrode compaction density Anode density (also known as anode compaction density) and positive electrode compaction density Cathode density (also known as cathode compaction density). II Principle: The compaction density has a significant impact on the performance of lithium-ion power batteries during the manufacturing process. Through experiments, it has been proven that the compaction density is closely related to the specific capacity, efficiency, internal resistance, and battery cycling performance. Finding the compaction density is important for battery design. Generally speaking, the higher the compaction density, the higher the capacity of the battery can be achieved, so compaction density is also considered as one of the reference indicators for material energy density. The compaction density is not only related to the size and density of particles, but also to the particle grading. Those with high compaction density generally have a good normal distribution of particles. It can be considered that under certain process conditions, the higher the compaction density, the higher the capacity of the battery. Appropriate positive electrode compaction density can increase the discharge capacity of the battery, reduce internal resistance, decrease polarization loss, prolong the cycle life of the battery, and improve the utilization rate of lithium-ion batteries. When the compaction density is too high or too low, it is not conducive to the insertion and extraction of lithium ions. The commonly used positive electrode materials (lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, ternary materials, etc.) and negative electrode materials (artificial graphite, natural graphite, composite graphite, etc.) have significant differences in compaction density due to different materials. III Scope of application: Mainly used for powder and particle compaction density testing. During the external compression process, as the powder moves and deforms, larger gaps are filled, the contact area between particles increases, causing atomic attraction and enhancing the mechanical wedging effect between particles, thereby forming a compact with a certain density and strength Meets the standard: GBT 24533-2009 Graphite based Negative Electrode Materials for Lithium ion Batteries, Appendix L: Test Method for Powder Compaction Density, which can also be used to determine the compaction density of powders and particles with similar characteristics; The testing methods for powders and particles are similar internationally. 4 Function description of FT-100F compaction density meter: The FT-100F compaction density meter adopts a hydraulic pressurization system controlled by PLC; The touch screen display interface enables constant pressure operation, which can automatically or manually set the constant pressure time and directly display data such as compaction density, pressure, and time. The instrument has password setting and data management functions; Configuring emergency stop function better protects the safety of instruments and operators Five Technical parameter requirements: 1. This instrument adopts electric or hydraulic pressurization method, the testing stroke can be adjusted, and is equipped with a testing mold part, which can be customized according to customer needs. 2 The compaction density consists of a control part, a pressure test part, and a mold provided by the test sample 3. Equipped with a height measuring ruler Mold diameter: 12.8mm 4 The instrument automatically pressurizes during the testing process. When the pressure reaches the preset value, the timer function is automatically activated. After reaching the preset pressurization time, the timer stops and the pressure is automatically released and the instrument leaves. 5. Pressure range: 1 ton; 2 tons; 3 tons; 5 tons; 10 tons; 15 ton range (optional) 6 The structure is sturdy and durable, and is equipped with limit protection function High precision testing balance up to 0.000 01g, range: 120g (optional) Input voltage: AC 380V 8 Input: 220V or 380V ROOKO brand, from Reko Corporation, a company dedicated to changing people's lifestyles and quality Emphasize both delicacy and refinement; With the yearning for wisdom, Ruike Instrument is a manufacturer of powder and particle analysis instruments in the battery materials industry. Commonly used instruments include FT-100F compaction density meter, FT-300 economical powder resistivity/conductivity tester; FT-301 multifunctional powder resistivity tester; FT-100B practical vibration density meter; FZS4-4 economical vibration density tester; FT-100A microcomputer powder density tester; FT-100CA microcomputer dual station vibrating density meter; FT-100DA microcomputer three station vibration density meter; FT-102 Hall current meter/loose density tester - made of stainless steel material; FL4-1 Hall current meter/powder flowability tester; FT-102A vibrating funnel loose density tester; FT-102B powder flowability and density tester; FT-102BA microcomputer powder flow and density tester; FT-104BA powder particle flowability analyzer (multifunctional type); FT-104BC powder particle flowability analyzer (practical); FT-2000A Particle and Powder Characteristics Analyzer (Multi functional Type); FT-2000B Particle and Powder Characteristics Analyzer (Practical); FT-600 series powder particle true density tester - specific gravity bottle method; FT-610 series true density analyzer - gas volumetric method); FT-2000A Particle and Powder Characteristics Analyzer (Multi functional Type); FT-2000B Particle and Powder Characteristics Analyzer (Practical); FT-102D Powder Physical Property Tester