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粉末自動(dòng)壓實(shí)密度儀應(yīng)用前景
更新時(shí)間:2018-01-06 點(diǎn)擊次數(shù):4586

粉末自動(dòng)壓實(shí)密度儀應(yīng)用前景

粉末自動(dòng)壓實(shí)密度儀應(yīng)用的范圍非常的廣泛,可以應(yīng)用于電池負(fù)極材料壓實(shí)密度的檢測(cè),三元材料、磷酸鐵鋰,石墨行業(yè)都能用得到,現(xiàn)在的新能源汽車是大力扶持的環(huán)保行業(yè),通過(guò)檢測(cè)這些原料的壓實(shí)密度是新能源汽車蓄電量*的部分。今天就跟大家分享下壓實(shí)密度儀的技術(shù)資料。

FT-100F粉末自動(dòng)壓實(shí)密度儀 

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

  1. 定義:Definition

壓實(shí)密度的計(jì)算公式:壓實(shí)密度=面密度/材料的厚度

在鋰離子電池設(shè)計(jì)過(guò)程中,壓實(shí)密度=面密度/(極片碾壓后的厚度—集流體厚度) ,單位: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

壓實(shí)密度分為:負(fù)極壓實(shí)密度Anode density(或稱為陽(yáng)極壓實(shí)密度)和正極壓實(shí)密度Cathode density(或稱為陰極壓實(shí)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)

. 原理: Principle:

鋰離子動(dòng)力電池在制作過(guò)程中,壓實(shí)密度對(duì)電池性能有較大的影響。通過(guò)實(shí)驗(yàn)證明,壓實(shí)密度與片比容量,效率,內(nèi)阻,以及電池循環(huán)性能有密切的關(guān)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*壓實(shí)密度對(duì)電池設(shè)計(jì)很重要。一般來(lái)說(shuō),壓實(shí)密度越大,電池的容量就能做的越高,所以壓實(shí)密度也被看做材料能量密度的參考指標(biāo)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.

壓實(shí)密度不光和顆粒的大小、密度有關(guān)系,還和粒子的級(jí)配有關(guān)系,壓實(shí)密度大的一般都有很好的粒子正態(tài)分布。可以認(rèn)為,工藝條件一定的條件下,壓實(shí)密度越大,電池的容量越高。

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.

合適的正極壓實(shí)密度可以增大電池的放電容量,減小內(nèi)阻,減小極化損失,延長(zhǎng)電池的循環(huán)壽命,提高鋰離子電池的利用率。在壓實(shí)密度過(guò)大或過(guò)小時(shí),不利于鋰離子的嵌入嵌出。

The proper positive electrode compaction density can increase the discharge capacity of the battery, reduce the internal resistance, reduce the loss of polarization, extend the cycle life of battery, Improve the utilization rate of lithium ion batteries. If the The compacted density is too large or too small , It is bad for the embedding of lithium ions.

.適用范圍:Scope of application

在外力的壓縮過(guò)程中,隨著粉末的移動(dòng)和變形,較大的空隙被填充,顆粒間接觸面積增大,使原子間產(chǎn)生吸引力且顆粒間的機(jī)械楔合作用增強(qiáng),從而形成具有一定密度和強(qiáng)度的壓坯.

In the process of the compression of external force, As the movement and deformation of powder, larger gap is filled, The contact area between particles increases, The interatomic appeal and mechanical wedge cooperation between particles will be enhanced, Thus forming a certain density and intensity of compact.

滿足標(biāo)準(zhǔn):GBT 24533-2009 鋰離子電池石墨類負(fù)極材料,附錄L:粉末壓實(shí)密度的測(cè)試方法,

Meet standard: GBT 24533-2009 lithium ion battery graphite type anode materials, appendix L: Test method of powder compaction density,

也可以用于具有類似特性之粉末和顆粒壓實(shí)密度之測(cè)定;上粉末和顆粒測(cè)試方法相通。

It can also be used for the determination of powder and particle’s compaction density which have similar properties; The test methods of powder and particle are similar internationally.

.功能描述:Function description:

采用液壓恒壓加壓測(cè)量系統(tǒng),7寸觸摸屏和PC軟件控制,高精度荷重單元控制系統(tǒng)能采集應(yīng)力變化數(shù)據(jù),可以任意設(shè)置壓力、時(shí)間數(shù)據(jù),位移由位移傳感器直讀,溫濕度數(shù)據(jù)通過(guò)傳感器獲得,多位數(shù)的AD芯片來(lái)保障數(shù)據(jù)的分析,全自動(dòng)模式,手動(dòng)操作模式及多段設(shè)置操作模式并存;標(biāo)配PC軟件可以獲得應(yīng)力與粉體密度關(guān)系曲線;時(shí)間與粉體屈服強(qiáng)度關(guān)系;過(guò)程數(shù)據(jù)的分析和曲線圖譜,為生產(chǎn)企業(yè)和科研院所研發(fā)新品和改善工藝建立數(shù)據(jù)模型.提供中英文兩種語(yǔ)言版本。

Adopts hydraulic constant pressureforcing pressure measurement system, 7 inch touch screen and PC software control, High precision load cell stress change control system can precisely collect  the stress change data, Date such as pressure, time Can be arbitrarily set, Displacement direct reading by displacement sensor, the temperature and humidity data obtained from the sensor, Multidigit AD chip to ensure data analysis, Automatic mode, Manual mode and Multistage set operating modes coexist; Configuring PC software to obtain the stress and powder density curve;The relationship between the time and the yield strength of the powder;Analysis of process data and curve spectrum , Set up data model  for production enterprises and scientific research institutes develop new products and improve the process. Provide both Chinese and English languages.

  1. 技術(shù) 參數(shù)Technical parameter

測(cè)試項(xiàng)目test project

技術(shù) 參數(shù)Technical parameter

分辨率Accuracy

1.主壓力 Main pressure

5噸;10噸;15噸;20噸;(選購(gòu))/

5 tons; 10 tons; 15 tons; 20 tons(choose to buy)

傳感器:1級(jí)/ Sensor: class 1

2.位移測(cè)量/displacement

高精度位移傳感器系統(tǒng),

High precision dial gauge

0.001mm

3.位移行程/ Displacement stroke

0-20mm

0.1mm

4. 控制系統(tǒng)/ Control system

液壓恒壓控制系統(tǒng) Hydraulic constant pressure control system

 

5.顯示方式/display

7寸觸摸屏+PC軟件7 inch touch screen+PC

 

6. 模具mould

內(nèi)徑:12.8mm;高:25mm

Inner diameter: 30mm,height25mmcustomizable

0.1mm

7.脫模方式Demoulding method

自動(dòng)automatic

 

8.安全裝置 Safety device

自動(dòng)診斷、過(guò)載保護(hù)和急停控制/

Automatic diagnosis, overload protection and emergency stop control

 

9.溫濕度范圍

Temperature humidity range

常溫-50度;濕度:20%-98%/

Room temperature -50 degrees, humidity20%-98%

 

10.時(shí)間設(shè)置time setting

0-99.9S

0.1S

11.設(shè)備管理功能

Device management function

密碼設(shè)置及數(shù)據(jù)管理存儲(chǔ)

Password settings and data management storage

 

12.密度值 Density value

99.99999g/cm3 不同樣品特性不同密度有所差異

Different samples characteristics have different density.

3%以內(nèi)

Less than 3%

13.形變量Deformation variables

可測(cè)量彈性材料形變量Measure the amount of elastic material deformation

 

14.高精度測(cè)試天平(選購(gòu))

High precision test balance(choose to buy)

0.00001g,量程:120g

Accurate to 0.00001g, range: 120g

0.01%

15.位移速度Displacement speed

小于15mm/min

0.1mm/min

16.使用環(huán)境要求

Environmental requirements

儀器使用環(huán)境要求:工作溫度:-10℃-40℃,濕度:≤65%RH

Environmental requirements for instrumentsworking temperature-10℃-40℃,humidity:≤65%RH

 

17.電源 Power Supply

380v

 

18. 整機(jī)不確定性誤差 Machine uncertainty error

整機(jī)不確定性誤差Machine uncertainty error 3%

 

選購(gòu)項(xiàng)目

Choose and buy items

a.電腦,打印機(jī)   b.其他規(guī)格模具  c.電動(dòng)抽油裝置

d.抽真空裝置   e.水分儀  f.真密度儀 g.松裝密度儀

h.振實(shí)密度儀

aComputer, printer, b.other specifications mold, c.Electric pumping unit, d. vacuum device  e. moisture meter f. true density meter g. loose density meter h. tap density meter

 

 

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