隨著(zhu)這(zhe)兩(liang)年電(dian)動(dong)(dong)汽車行業(ye)的(de)(de)(de)(de)快速發展,對鋰離(li)(li)子電(dian)池(chi)(chi)(chi),特別(bie)是動(dong)(dong)力鋰離(li)(li)子電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)品(pin)質要求有(you)(you)了顯著(zhu)提(ti)高(gao),而對電(dian)池(chi)(chi)(chi)行性(xing)能(neng)有(you)(you)明顯影(ying)響(xiang)的(de)(de)(de)(de)鋰電(dian)制程水(shui)(shui)(shui)分控(kong)制水(shui)(shui)(shui)平要求更加嚴格(ge)。鋰離(li)(li)子電(dian)池(chi)(chi)(chi)內部是一個較為復雜(za)的(de)(de)(de)(de)化(hua)學(xue)體系,這(zhe)些化(hua)學(xue)系統的(de)(de)(de)(de)反應過程及(ji)結(jie)果(guo)都與水(shui)(shui)(shui)分密切相關。而水(shui)(shui)(shui)分的(de)(de)(de)(de)失(shi)控(kong)或粗化(hua)控(kong)制,導(dao)致電(dian)池(chi)(chi)(chi)中(zhong)水(shui)(shui)(shui)分的(de)(de)(de)(de)超標存在,不但(dan)能(neng)導(dao)致電(dian)解質鋰鹽的(de)(de)(de)(de)分解,而且(qie)對正負(fu)極材(cai)料(liao)的(de)(de)(de)(de)成(cheng)膜和(he)穩(wen)定性(xing)產生(sheng)惡(e)(e)劣影(ying)響(xiang),導(dao)致鋰離(li)(li)子電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)電(dian)化(hua)學(xue)特性(xing),諸如容量、內阻、產品(pin)特性(xing)都會產生(sheng)較為明顯的(de)(de)(de)(de)惡(e)(e)化(hua)。電(dian)池(chi)(chi)(chi)原材(cai)料(liao)的(de)(de)(de)(de)含(han)水(shui)(shui)(shui)率對電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)性(xing)能(neng)會有(you)(you)很大影(ying)響(xiang),通常需要檢(jian)測(ce)(ce),深圳冠亞(ya)WL-02X電(dian)池(chi)(chi)(chi)隔膜含(han)水(shui)(shui)(shui)率檢(jian)測(ce)(ce)儀可以快速的(de)(de)(de)(de)檢(jian)測(ce)(ce)其水(shui)(shui)(shui)分!
1、稱(cheng)重范圍:0-90g
2、測試空間為5cm(特殊)
3、水分測定范圍:0.00-100%
干重測定范(fan)圍(wei):100-0.00%
4、稱(cheng)重系(xi)統精度:0.001g
5、樣品質量:0 -90g
6、加熱溫度范圍:環(huan)境(jing)溫度-229.9℃
溫度誤差:±0.5℃
溫度分辨率:0.1℃
7、加(jia)熱(re)源:400w
8、水分含量(liang)可讀性:0.01%.
9、顯示:彩(cai)色7寸(cun)液(ye)晶觸摸屏
10、溫度窗口:實時顯示當下(xia)環境溫度
環(huan)境溫度顯示誤差:±0.5℃
11、參(can)數(shu)八種(zhong): 水分值(zhi)%、干重(zhong)(zhong)%、當前溫(wen)度(du)(du)、設定(ding)溫(wen)度(du)(du)、當前重(zhong)(zhong)量、初始重(zhong)(zhong)量、測(ce)試(shi)時(shi)間(jian)、恒(heng)重(zhong)(zhong)時(shi)間(jian)
12、雙重通訊接(jie)口:RS 232(打印)
USB(計算機(ji))
13、操作模式:全屏幕觸(chu)控(kong)式
14、外型尺寸(cun):380×205×325(mm)
15、電源:220V
16、頻(pin)率:50Hz±1Hz
17、凈(jing)重(zhong):4.5Kg
18、試樣溫度:-40℃-50℃;
19、工作環(huan)境溫(wen)度:-5℃-50℃;
20、相對濕度:≤80%RΗ;
通(tong)常所稱的鋰(li)(li)(li)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),是以各種含(han)鋰(li)(li)(li)材(cai)料(liao)為(wei)正極材(cai)料(liao)的電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),目前(qian)市場上的鋰(li)(li)(li)離子(zi)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)正極材(cai)料(liao)主要是鈷酸(suan)(suan)鋰(li)(li)(li)(LiCoO2)、錳酸(suan)(suan)鋰(li)(li)(li)(LiMn2O4),另外還有(you)(you)少數采用(yong)鎳酸(suan)(suan)鋰(li)(li)(li)(LiNiO2)以及二元/三元聚合(he)物作(zuo)(zuo)(zuo)正極材(cai)料(liao)的鋰(li)(li)(li)離子(zi)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)。磷酸(suan)(suan)鐵(tie)鋰(li)(li)(li)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)是用(yong)磷酸(suan)(suan)鐵(tie)鋰(li)(li)(li)(LiFePO4,簡稱LFP)材(cai)料(liao)作(zuo)(zuo)(zuo)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)正極的鋰(li)(li)(li)離子(zi)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),LiFePO4電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的工作(zuo)(zuo)(zuo)原理是:電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)充電(dian)(dian)(dian)(dian)時,正極材(cai)料(liao)中(zhong)的鋰(li)(li)(li)離子(zi)脫出來(lai),經過(guo)電(dian)(dian)(dian)(dian)解液,穿(chuan)過(guo)隔(ge)膜進(jin)(jin)入到負(fu)極材(cai)料(liao)中(zhong);電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)放電(dian)(dian)(dian)(dian)時,鋰(li)(li)(li)離子(zi)又從負(fu)極中(zhong)脫出來(lai),經過(guo)電(dian)(dian)(dian)(dian)解液,穿(chuan)過(guo)隔(ge)膜回到正極材(cai)料(liao).材(cai)料(liao)中(zhong)的水(shui)分(fen)含(han)量是電(dian)(dian)(dian)(dian)芯中(zhong)水(shui)分(fen)的主要來(lai)源(yuan)之一,而且環境濕度(du)越(yue)大,電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)材(cai)料(liao)越(yue)容易吸收空氣中(zhong)的水(shui)分(fen)。反之,環境濕度(du)控制越(yue)好,電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)材(cai)料(liao)吸收空氣中(zhong)水(shui)分(fen)的能力(li)越(yue)有(you)(you)限(xian)。目前(qian)有(you)(you)一種鋰(li)(li)(li)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)生(sheng)產車(che)間的建議濕度(du)控制階梯為(wei)(僅(jin)供參考,濕度(du)控制根據各電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)企業實(shi)際情況來(lai)進(jin)(jin)行操作(zuo)(zuo)(zuo)):
相對(dui)濕度(du)≦ 30%車間(如攪拌、涂布機(ji)頭、機(ji)尾等)
相(xiang)對濕度(du)≦ 20%車間(jian)(如輥壓、制片、烘烤(kao)等)
相(xiang)對濕度≦ 10%車間(如疊(die)片、卷(juan)繞、裝配等(deng))
露點溫度≦ -45℃車(che)間(如電(dian)芯烘烤、注(zhu)液、封口等)
1、放(fang)配件,開價儀器自動預熱
2、放砝(fa)碼點擊(ji)屏幕校準(zhun)(zhun)(zhun)(zhun)鍵自(zi)動校準(zhun)(zhun)(zhun)(zhun)。(定期(qi)效準(zhun)(zhun)(zhun)(zhun),不(bu)用每天(tian)開機(ji)效準(zhun)(zhun)(zhun)(zhun))
3、取樣(yang),點擊(ji)“開(kai)始(shi)測(ce)試”鍵自動開(kai)始(shi)工作
4、儀(yi)器加熱中,自動顯示丟(diu)失的水(shui)分值
5、測試(shi)結束,自(zi)動鎖定水分值,記(ji)錄數據(ju)