ICS

77.160

CCS

H21

中華人民共和國國家標準

GB/T44330—2024

鋰離子電池正極材料

粉末壓實密度的測定

Lithium-ionbatterycathodematerials—

Determinationofpowdercompactiondensity

2024-08-23發(fā)布2025-03-01實施

國家市場監(jiān)督管理總局發(fā)布

國家標準化管理委員會

GB/T44330—2024

目次

前言

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Ⅲ

1

范圍

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1

2

規(guī)范性引用文件

······················································································

1

3

術語和定義

···························································································

1

4

原理

··································································································

1

5

試劑與材料

···························································································

1

6

儀器設備

······························································································

2

7

樣品

··································································································

2

8

試驗步驟

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2

9

試驗數(shù)據(jù)處理

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4

10

精密度

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4

11

試驗報告

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4

參考文獻

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5

Ⅰ

GB/T44330—2024

前言

本文件按照GB/T1.1—2020《標準化工作導則

第1部分：標準化文件的結構和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內容可能涉及專利。本文件的發(fā)布機構不承擔識別專利的責任。

本文件由中國有色金屬工業(yè)協(xié)會提出。

本文件由全國有色金屬標準化技術委員會（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、寧德時代新能

源科技股份有限公司、湖北萬潤新能源科技股份有限公司、廣東邦普循環(huán)科技有限公司、北京當升材料

科技股份有限公司、成都巴莫科技有限責任公司、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（無錫）能源材

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

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、萬思成、

陳彥彬、裴雪蓮、陳爽、熊勇招、邱志平、嚴旭豐、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、朱夢絲、胡志平、陳建軍、馬瑞強、趙志安。

Ⅲ

GB/T44330—2024

鋰離子電池正極材料

粉末壓實密度的測定

1范圍

本文件描述了鋰離子電池正極材料粉末壓實密度測定方法的原理、試劑與材料、儀器設備、樣品、

試驗步驟、試驗數(shù)據(jù)處理、精密度、試驗報告等內容。

本文件適用于鋰離子電池正極材料粉末壓實密度的測定。

2規(guī)范性引用文件

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

件，僅該日期對應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術語和定義

下列術語和定義適用于本文件。

3.1

壓實密度compactiondensity

粉末樣品在一定壓強下壓實后質量與其所占體積之比。

[來源：GB/T41232.2—2021,3.1.2,有修改]

4原理

稱取一定質量的待測粉末材料，使用外力將其壓縮，壓縮過程中粉末間的空隙被填充，顆粒間接觸

面積增大，使原子間產生吸引力且顆粒間的機械契合作用增強，從而形成具有一定密度和強度的壓坯，

通過對壓坯厚度的測量并結合模具內徑計算其體積，進一步計算在某一壓強下粉末材