GB/T 44330-2024鋰離子電池正極材料粉末壓實(shí)密度的測(cè)定

ICS

77.160

CCS

H21

中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)

GB/T44330—2024

鋰離子電池正極材料

粉末壓實(shí)密度的測(cè)定

Lithium-ionbatterycathodematerials—

Determinationofpowdercompactiondensity

2024-08-23發(fā)布2025-03-01實(shí)施

國(guó)家市場(chǎng)監(jiān)督管理總局發(fā)布

國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)

GB/T44330—2024

目次

前言

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1

范圍

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規(guī)范性引用文件

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3

術(shù)語(yǔ)和定義

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原理

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試劑與材料

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儀器設(shè)備

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樣品

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8

試驗(yàn)步驟

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試驗(yàn)數(shù)據(jù)處理

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精密度

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試驗(yàn)報(bào)告

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參考文獻(xiàn)

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Ⅰ

GB/T44330—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則

第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。

本文件由中國(guó)有色金屬工業(yè)協(xié)會(huì)提出。

本文件由全國(guó)有色金屬標(biāo)準(zhǔn)化技術(shù)委員會(huì)（SAC/TC243）歸口。

本文件起草單位：廈門廈鎢新能源材料股份有限公司、元能科技（廈門）有限公司、寧德時(shí)代新能

源科技股份有限公司、湖北萬(wàn)潤(rùn)新能源科技股份有限公司、廣東邦普循環(huán)科技有限公司、北京當(dāng)升材料

科技股份有限公司、成都巴莫科技有限責(zé)任公司、巴斯夫杉杉電池材料有限公司、浙江友山新材料科技

有限公司、佛山市德方納米科技有限公司、寧波容百新能源科技股份有限公司、格林美（無(wú)錫）能源材

料有限公司、江門市科恒實(shí)業(yè)股份有限公司、湖南中偉新能源科技有限公司、四川賽科檢測(cè)技術(shù)有限公

司、深圳市德方創(chuàng)域新能源科技有限公司、福安青美能源材料有限公司、福建紫金鋰元材料科技有限公

司、深圳中芯能科技有限公司、寧德新能源科技有限公司、深圳市沃爾德新能源有限公司、宜賓鋰寶新

材料有限公司、東莞新能源科技有限公司、浙江瑞邦科技有限公司、深圳清研鋰業(yè)科技有限公司、池州

西恩新材料科技有限公司。

本文件主要起草人：曾雷英、魏麗英、楊凡、楊曉璐、齊瓊瓊、羅東升、程小雪、萬(wàn)思成、

陳彥彬、裴雪蓮、陳爽、熊勇招、邱志平、嚴(yán)旭豐、彭麗、楊帆、訚碩、孫平、裴現(xiàn)一男、葉元斌、

李禎、李良、鄭黃舜、劉湘雄、張彬、朱夢(mèng)絲、胡志平、陳建軍、馬瑞強(qiáng)、趙志安。

Ⅲ

GB/T44330—2024

鋰離子電池正極材料

粉末壓實(shí)密度的測(cè)定

1范圍

本文件描述了鋰離子電池正極材料粉末壓實(shí)密度測(cè)定方法的原理、試劑與材料、儀器設(shè)備、樣品、

試驗(yàn)步驟、試驗(yàn)數(shù)據(jù)處理、精密度、試驗(yàn)報(bào)告等內(nèi)容。

本文件適用于鋰離子電池正極材料粉末壓實(shí)密度的測(cè)定。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對(duì)應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

GB/T8170數(shù)值修約規(guī)則與極限數(shù)值的表示和判定

3術(shù)語(yǔ)和定義

下列術(shù)語(yǔ)和定義適用于本文件。

3.1

壓實(shí)密度compactiondensity

粉末樣品在一定壓強(qiáng)下壓實(shí)后質(zhì)量與其所占體積之比。

[來(lái)源：GB/T41232.2—2021,3.1.2,有修改]

4原理

稱取一定質(zhì)量的待測(cè)粉末材料，使用外力將其壓縮，壓縮過(guò)程中粉末間的空隙被填充，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)械契合作用增強(qiáng)，從而形成具有一定密度和強(qiáng)度的壓坯，

通過(guò)對(duì)壓坯厚度的測(cè)量并結(jié)合模具內(nèi)徑計(jì)算其體積，進(jìn)一步計(jì)算在某一壓強(qiáng)下粉末材