FT-100F粉末自动压实密度仪（升级版）

　　FT-100F Powder automatic compaction density instrument (updated version)

　　压实密度(compacted density)

　　一. 定义:Definition

　　压实密度的计算公式:压实密度=面密度/材料的厚度

　　在锂离子电池设计过程中，压实密度=面密度/(极片碾压后的厚度—集流体厚度) ，单位:g/cm3

　　Compaction density calculation formula: the compaction density =surface density/ thickness of material

　　In the process of lithium ion battery design, compaction density = surface density / (The thickness of the pole plate after crushing - current collector thickness), unit: g/cm3

　　压实密度分为:负极压实密度Anode density（或称为阳极压实密度）和正极压实密度Cathode density（或称为阴极压实密度）。

　　Compaction density is divided into: the cathode compaction density (or is called the Anode compaction density) and the Anode compaction density (or called the Cathode compaction density)

　　二. 原理: Principle:

　　锂离子动力电池在制作过程中，压实密度对电池性能有较大的影响。通过实验证明，压实密度与片比容量，效率，内阻，以及电池循环性能有密切的关系。

　　In the process of making lithium ion power battery, The compacting density has a large effect on battery performance.The test results show that the compaction density is closely related to specific capacity, efficiency, internal resistance and the performance of the battery cycle.

　　找出最佳压实密度对电池设计很重要。一般来说，压实密度越大，电池的容量就能做的越高，所以压实密度也被看做材料能量密度的参考指标之一。

　　It is important to find the optimal compaction density for battery design.Generally speaking, the higher the density, the higher the capacity of the battery, so the compacted density is also seen as a reference indicator of the energy density of the material.

　　压实密度不光和颗粒的大小、密度有关系，还和粒子的级配有关系，压实密度大的一般都有很好的粒子正态分布。可以认为，工艺条件一定的条件下，压实密度越大，电池的容量越高。

　　The compaction density is not only related to the size and density of the particle, but also related to the level of the particle, Normally, High compaction density has a good particle normal distribution.It can be said that under certain conditions ,The higher density of the battery, the higher capacity of the battery.