标准编号:	GB/T 24533-2019
中文名称:	锂离子电池石墨类负极材料
英文名称:	Graphite negative electrode materials for lighium ion battery
中标分类:	Q51    石墨材料
行业分类:	GB    国家标准
ICS分类:	29.050 29.050    导体材料 29.050
发布机构:	国家市场监督管理总局 国家标准化管理委员会
发布日期:	2019-03-25
实施日期:	2020-2-1
标准状态:	valid
替代旧标准:	GB/T 24533-2009 锂离子电池石墨类负极材料
翻译语言:	英文
文件格式:	PDF
中文字符数:	45000 字
翻译价格(元):	750.0
交付时间:	付款后 1 个工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 24533-2009 Graphite negative electrode materials for lithium ion battery. The following main technical changes have been made with respect to GB/T 24533-2009: ——The “Normative references” is modified (see clause 2); ——The definition of graphite negative electrode materials for lithium ion battery is modified, changing the "carbon negative electrode" in the definition to "graphite negative electrode" (see 3.1); ——The "MCMB type artificial graphite" is changed to "CMB artificial graphite", the "needle coke type artificial graphite" is changed to "needle coke artificial graphite", and the "petroleum coke type artificial graphite" is changed to "common petroleum coke artificial graphite", and the explanation of composite graphite is added (see 4.1.1); ——The grades of some of the graphite negative electrode materials for lithium ion batteries are modified and the indexes of graphitization degree are added (see 4.1.2); ——The “AG-PAG-I-18-340” in the product code example is deleted (see 4.2 of Edition 2009); ——The content on technical index of typical products is modified, and the content "Tables 3 to 11 is modified to "Tables 3, 4 and 5" (see 5.2); ——The moisture determination is modified as: it shall be determined in accordance with Annex B or the requirements of GB/T 3521 (see 6.3); ——The specific surface area determination is modified as: it shall be determined in accordance with GB/T 19587 (see 6.6); ——The determination method of graphite orientation (reference index) is added, and the graphite orientation shall be determined according to those specified in Annex F (see 6.9); ——The determination of NO2- and PO43- is deleted (see 6.12 of Edition 2009); ——The determination method of organic matter content is modified (see 6.17); ——The determination method of restricted substance content is modified (see 6.18); ——The sampling and sample preparation are modified to be carried out in accordance with GB/T 1427 (see 7.1.1); ——The requirement “The samples for inspection and retention shall be reserved for at least 500g” is deleted (see 7.1.4 of Edition 2009); ——The first discharge specific capacity and initial Coulombic efficiency are added in and the pH value is deleted from end-of-manufacturing inspection (see 7.2.1); ——The “raw material batch number” is deleted from the type inspection (see 7.2.2 of Edition 2009); ——The provision "The consignee is entitled to carry out acceptance inspection on the products in accordance with this standard and reject the products that do not meet the requirements of this standard” is deleted from the acceptance rules (see 7.3.3 of Edition 2009); ——The requirements of packaging and marking are modified as: The packaging and marking of products shall meet those specified in GB/T 191 and GB/T 6388, and the net weight shall be negotiated by the supplier and the demander (see 8.1); ——The provision "Suggestion: in an environment with a temperature ≤45℃ and a humidity ≤ 75%” is deleted (see 8.2 of Edition 2009); ——The provision “There shall be conspicuous marking on the front surface of each pacing bag of the graphite negative electrode materials for lithium ion battery” is deleted (see 8.4.1 of Edition 2009); ——The provision "Suggestion: temperature ≤45℃ and humidity ≤ 75%” is deleted (see 9.1 of Edition 2009); ——The requirements for dispersing agents in Annex A are modified (see A.3.1); ——The test range of particle size is modified (see A.4.3); ——The instrument setting parameters in Annex A are modified as: Set the optimum parameters according to the instrument instruction (see A.4.4); ——The “Result calculation and data processing” in Annex A is modified, with the “Dmax” added (see A.7); ——The “Instruments and apparatus” in Annex B is modified, with the sensitivity of the balance modified to "0.0001 g", and the capacity of microinjector increased by "5μL" (see B.4.2 and B.4.3); ——The “Reagents and materials” in Annex C is modified (see C.3); ——The “Instruments and apparatus” in Annex C is modified, with the watch glasses and electric hot plate deleted, and the ultrasonic cleaner added (see C.4); ——The “Specimen preparation” in Annex C is modified (see C.5); ——The “Instruments and apparatus” in Annex D is modified, with the sensitivity of the balance modified to "0.0001 g” (see D.4.4); ——The rounding-off requirements for result calculation and data processing in Annex D are added (see D.6.3); ——The Annex F “Method for determining orientation of graphite” is added (see Annex F); ——The binder in Annex G is modified (see G.3.2); ——The “Analytical procedure” in Annex G is modified, with the corresponding content modified to "charge/discharge rate: 0.1C" (see G.6); ——The “Scope” in Annex H is modified, with "cobalt and zinc” added in it (see H.1); ——The “Reagents and materials” in Annex H is modified, with the standard solutions of cobalt and zinc added (see H.3); ——The “Instruments and apparatus” in Annex H is modified, with the sensitivity of the balance modified to "0.000 1 g” (see H.4); ——The determination requirements in Annex H are modified, with the reference wavelengths of cobalt and zinc added (see H.7); ——The "NO2-"and "PO43-" in the scope of Annex I are deleted (see I.1 of Edition 2009); ——The preparations of standard solutions of "NO2-"and "PO43-"in “Reagents and materials” in Annex I are deleted (see I.3 of Edition 2009); ——The determination scope in Annex K is modified, with the content of cobalt added (see K.1); ——The “Reagents and materials” in Annex K is modified, with the cobalt standard solution added (see K.3.5); ——The “Instruments and apparatus” in Annex K is modified (see K.4); ——The “Specimen preparation” in Annex K is modified (see K.5); ——The “Preparation of series mixed standard solutions” in Annex K is modified (see K.6); ——The “Analytical procedure” in Annex K is modified (see K.7); ——The “Reagents and materials” in Annex L is modified, with the anhydrous ethanol added (see L.3.2); ——The “Instruments and apparatus” in Annex L is modified, with the vernier caliper replaced by digital thickness gauge (see L.4.3); ——The “Analytical procedure” in Annex L is modified (see L.5); ——The “Result calculation and data processing” in Annex L is modified (see L.6); ——The sensitivity of the balance in “Instruments and apparatus” in Annex M is modified to "0.0001 g” (see M.3.1); ——The provision "The 25 cm3 measuring cylinder is mainly used for measuring powders with an apparent density greater than 4 g/cm3" (see M.3.2.2 of Edition 2009); ——The table of correspondence between apparent density and powder amount in the “Analytical procedure” in Annex M is modified (see M.4.2); ——The original Annexes D, N and O are deleted (see Edition 2009). This standard was proposed by China Iron and Steel Industry Association. This standard is under the jurisdiction of SAC/TC 183 National Technical Committee on Iron and Steel of Standardization Administration of China. The previous edition of this standard is as follows: ——GB/T 24533-2009. Graphite negative electrode materials for lithium ion battery 1 Scope This standard specifies terms and definitions, classification and code, technical requirements, test methods, inspection rules, etc. of graphite negative electrode materials for lithium ion battery. This standard is applicable to graphite negative electrode materials with lithium ion battery as the negative electrode. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 191 Packaging - Pictorial marking for handling of goods GB/T 1427 Sample method of carbon material GB/T 3120 Nickel wires GB/T 3521 Method for chemical analysis of graphite GB/T 3782 Acetylene black GB/T 4369 Lithium GB/T 5187 Foil of copper and copper alloy GB/T 6388 Transport package shipping mark GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 9724 Chemical reagent - General rule for the determination of pH GB/T 19587 Determination of the specific surface area of solids by gas adsorption using the BET method GB/T 26125 Electrical and electronic products - Determination of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers) EPA 8260C: 2006 Volatile organic compounds by gas chromatography/mass spectrometry (GC/MS) EPA 5021: 1996 Volatile organic compounds in soils and other solid matrices using equilibrium headspace analysis 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 graphite negative electrode materials for lithium ion battery graphite carbon material with crystalline layered structure, which cooperates with positive electrode material in a certain system to realize multiple charging and discharging of lithium ion battery, graphite negative electrode accepting lithium ion insertion in the charging process while lithium ion leaving the graphite negative electrode in the discharging process Note: The theoretical capacity of graphite negative electrode material is 372 (mA·h)/g, and the color is gray black or steel gray with metallic luster. 4 Classification and code 4.1 Product classification 4.1.1 Types of graphite negative electrode materials for lithium ion battery: a) natural graphite, expressed by NG. b) artificial graphite, expressed by AG, which is divided into the following 3 types: 1) mesophase carbon micro bead artificial graphite, expressed by CMB (Carbon Micro Bead); 2) needle coke artificial graphite, expressed by NAG; 3) common petroleum coke artificial graphite, expressed by CPAG. c) composite graphite, graphite material containing at least natural graphite and artificial graphite, expressed by CG. 4.1.2 The grades of graphite negative electrode materials for lithium ion battery are shown in Table 1. Table 1 Grades of graphite negative electrode materials for lithium ion battery Type Grade First discharge specific capacity (mA·h)/g Initial Coulombic efficiency % Powder compaction density g/cm3 Graphitization degree % Fixed carbon content % Magnetic substance content ppm Iron content ppm ROHS certification Natural graphite (NG) I ≥360.0 ≥95.0 ≥1.65 ≥96 ≥99.97 ≤0.1 ≤10 Passed II ≥360.0 ≥93.0 ≥1.55 ≥94 ≥99.95 ≤0.1 ≤30 Passed III ≥345.0 ≥91.0 ≥1.45 ≥92 ≥99.90 ≤0.5 ≤50 Passed Artificial graphite (AG) Carbon micro bead (CMB) I ≥350.0 ≥95.0 ≥1.50 ≥94 ≥99.97 ≤0.1 ≤20 Passed II ≥340.0 ≥94.0 ≥1.40 ≥90 ≥99.95 ≤0.5 ≤50 Passed III ≥330.0 ≥90.0 ≥1.20 ≥90 ≥99.70 ≤1.5 ≤100 Passed Needle coke (NAG) I ≥355.0 ≥94.0 ≥1.25 ≥94 ≥99.97 ≤0.1 ≤20 Passed II ≥340.0 ≥93.0 ≥1.20 ≥90 ≥99.95 ≤0.1 ≤50 Passed III ≥320.0 ≥90.0 ≥1.10 ≥85 ≥99.70 ≤1.5 ≤100 Passed Common petroleum coke (CPAG) I ≥350.0 ≥95.0 ≥1.40 ≥94 ≥99.97 ≤0.1 ≤20 Passed II ≥330.0 ≥93.0 ≥1.20 ≥90 ≥99.95 ≤0.1 ≤50 Passed III ≥300.0 ≥90.0 ≥1.00 ≥85 ≥99.70 ≤1.5 ≤100 Passed Composite graphite (CG) I ≥355.0 ≥94.0 ≥1.60 ≥94 ≥99.97 ≤0.1 ≤20 Passed II ≥345.0 ≥92.0 ≥1.50 ≥92 ≥99.95 ≤0.1 ≤30 Passed III ≥330.0 ≥91.0 ≥1.40 ≥90 ≥99.70 ≤0.5 ≤50 Passed Notes: 1 The product shall be of certain grade only if its indexes meet the requirements of all indexes of such grade. 2 RoHS certification refers to passing the restricted substance content detection certification. 4.2 Product code The product code consists of type code, grade code, D50 and first discharge specific capacity, which are arranged in sequence, namely: Type code-grade code-D50-first discharge specific capacity; see Table 2 for specific examples. Table 2 Examples of product codes and their meanings Example Meaning NG-I-18-360 Grade I natural graphite negative electrode materials for lithium ion battery, with D50 = (18.0±2.0) μm, and first discharge specific capacity ≥ 360 (mA·h)/g AG-CMB-I-22-350 Grade I artificial graphite mesophase graphite negative electrode materials for lithium ion battery, with D50 = (22.0±2.0) μm and first discharge specific capacity ≥ 350 (mA·h)/g AG-NAG-I-18-355 Grade I needle coke artificial graphite negative electrode materials for lithium ion battery, with D50 = (18.0±2.0) μm and first discharge specific capacity ≥ 355 (mA·h)/g CG-I-17-355 Grade I composite graphite negative electrode materials for lithium ion battery, with D50 = (17.0±2.0) μm and first discharge specific capacity ≥ 355 (mA·h)/g 5 Technical requirements 5.1 Appearance Gray black or steel gray powder with metallic luster. 5.2 Physical and chemical indexes The physical and chemical indexes of graphite negative electrode materials for lithium ion battery shall meet those specified in Table 1, and the special requirements, if any, shall be determined through negotiation between the supplier and the demander. The technical indexes of typical products are listed in Tables 3, 4 and 5.

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification and code 5 Technical requirements 6 Test methods 7 Inspection rules 8 Packaging and marking 9 Storage and transport Annex A (Normative) Method for measuring particle size distribution Annex B (Normative) Method for determining moisture content Annex C (Normative) Method for determining pH value Annex D (Normative) Method for determining true density Annex E (Normative) Method for determining of interplanar spacing d Annex F (Normative) Method for determining orientation of graphite Annex G (Normative) Method for determining initial Coulombic efficiency and first discharge specific capacity Annex H (Normative) Method for determining trace metal elements Annex I (Normative) Method for determining anions Annex J (Normative) Method for determining sulfur content Annex K (Normative) Method for determining magnetic substances Annex L (Normative) Method for determining powder compaction density Annex M (Normative) Method for determining tap density

锂离子电池石墨类负极材料 1 范围 本标准规定了锂离子电池石墨类负极材料的术语和定义、分类及代号、技术要求、试验方法及检验规则等。 本标准适用于锂离子电池作为负极使用的石墨类负极材料。 2规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。 GB/T 191包装储运图示标志 GB/T 1427 炭素材料取样方法 GB/T 3120镍线 GB/T 3521 石墨化学分析方法 GB/T 3782 乙炔炭黑 GB/T 4369 锂 GB/T 5187 铜及铜合金箔材 GB/T 6388 运输包装收发货标志 GB/T 6682 分析实验室用水规格和试验方法 GB/T 8170 数值修约规则与极限数值的表示和判定 GB/T 9724 化学试剂 pH值测定通则 GB/T 19587 气体吸附BET法测定固态物质比表面积 GB/T 26125 电子电气产品 六种限用物质(铅、汞、镉、六价铬、多溴联苯和多溴二苯醚)的测定 EPA 8260C：2006挥发性有机物GC-MS测定方法[Volatile organic compounds by gas chroma-tography/mass spectrometry(GC/MS)] EPA 5021：1996均衡顶空法分析土壤和其他固相基质中易挥发的有机化合物(Volatile organic compounds in soils and other solid matrices using equilibrium headspace analysis) 3术语和定义 下列术语和定义适用于本文件。 3.1 锂离子电池石墨类负极材料 graphite negative electrode materials for lithium ion battery 锂离子电池石墨类负极材料采用的是结晶型层状结构的石墨类炭材料，与正极材料在一定体系下协同作用实现锂离子电池多次充电和放电，在充电过程中，石墨类负极接受锂离子的嵌入，而放电过程中，实现锂离子的脱出。 注：石墨类负极材料的理论容量为372(mA·h)/g，颜色为灰黑或钢灰，有金属光泽。 4分类及代号 4.1 产品分类 4.1.1 锂离子电池石墨类负极材料类别： a)天然石墨，用NG(Natural Graphite)表示。 b)人造石墨，用AG(Artifical Graphite)表示，分为以下3种： 1)中间相炭微球人造石墨，用CMB(Carbon Micro Bead)表示； 2)针状焦人造石墨，用NAG(Needle Coke Artifieal Graphite)表示； 3)石油普焦人造石墨，用CPAG(Common Petroleum Coke Artifieal Graphite)表示。 c)复合石墨，至少含有天然石墨和人造石墨双组分的石墨材料，用CG(Composite Graphite)表示。 4.1.2锂离子电池石墨类负极材料等级，见表1。 表1 锂离子电池石墨类负极材料等级 类型 级别 首次放电 比容量(mA·h)/g 首次库仑 效率 ％ 粉末压实 密度 g/cm3 石墨 化度 ％ 固定碳 含量 ％ 磁性物 质含量 ppm 铁含量 ppm RoHS 认证 天然石墨(NG) I ≥360.0 ≥95.0 ≥1.65 ≥96 ≥99.97 ≤0.1 ≤10 通过 Ⅱ ≥360.0 ≥93.0 ≥1.55 ≥94 ≥99.95 ≤0.1 ≤30 通过 Ⅲ ≥345.0 ≥91.0 ≥1.45 ≥92 ≥99.90 ≤0.5 ≤50 通过 人造 石墨 (AG) 中间相 (CMB) I ≥350.0 ≥95.0 ≥1.50 ≥94 ≥99.97 ≤0.1 ≤20 通过 Ⅱ ≥340.0 ≥94.0 ≥1.40 ≥90 ≥99.95 ≤0.5 ≤50 通过 Ⅲ ≥330.0 ≥90.0 ≥1.20 ≥90 ≥99.70 ≤1.5 ≤100 通过 针状焦 (NAG) I ≥355.0 ≥94.0 ≥1.25 ≥94 ≥99.97 ≤0.1 ≤20 通过 Ⅱ ≥340.0 ≥93.0 ≥1.20 ≥90 ≥99.95 ≤0.1 ≤50 通过 Ⅲ ≥320.0 ≥90.0 ≥1.10 ≥85 ≥99.70 ≤1.5 ≤100 通过 石油 普焦 (CPAG) I ≥350.0 ≥95.0 ≥1.40 ≥94 ≥99.97 ≤0.1 ≤20 通过 Ⅱ ≥330.0 ≥93.0 ≥1.20 ≥00 ≥99.95 ≤0.1 ≤50 通过 Ⅲ ≥300.0 ≥90.0 ≥1.00 ≥85 ≥99.70 ≤1.5 ≤100 通过 复合石墨 (CG) I ≥355.0 ≥94.0 ≥1.60 ≥94 ≥99.97 ≤0.1 ≤20 通过 Ⅱ ≥345.0 ≥92.0 ≥1.50 ≥92 ≥99.95 ≤0.1 ≤30 通过 Ⅲ >1330.0 ≥91.0 ≥1.40 ≥90 ≥99.70 ≤0.5 ≤50 通过 注1：产品指标需要满足该等级产品的所有指标，否则不归于该等级。 注2：RoHS认证是指通过限用物质含量检测认证。 4.2 产品代号 产品代号由类别代号、等级代号、D50和首次放电比容量等依次排列组成，即： 类别代号-等级代号-D50-首次放电比容量，具体示例见表2。 表2产品代号示例及其表示的含义 示例 表示的含义 NG-I-18-360 NG天然石墨类、I级品锂离子电池石墨类负极材料、D50=(18.0±2.0)μm，首次放电比容量≥360(mA·h)/g AG-CMB-I-22-350 AG-CMB人造石墨中间相类、I级品锂离子电池石墨类负极材料、D50=(22.0±2.0)μm，首次放电比容量≥350(mA·h)/g AG-NAG-I-18-355 AG-NAG人造石墨针状焦类、I级品锂离子电池石墨类负极材料、D50=(18.0±2.0)μm，首次放电比容量≥355(mA·h)/g CG-I-17-355 CG复合石墨类、I级品锂离子电池石墨类负极材料、D50=(17.0±2.0)μm，首次放电比容量≥355(mA·h)/g 5技术要求 5.1 外观 颜色灰黑或钢灰，有金属光泽的粉末。 5.2 理化指标 锂离子电池石墨类负极材料的理化指标应符合表1的规定，若有特殊要求由供需双方协商确定。表3、表4和表5为典型产品技术指标。 6试验方法 6.1 外观 自然光条件下目视观察。 6.2粒度分布 按照附录A的规定进行测定。 6.3 水分 按照附录B或GB/T 3521的规定进行测定。 6.4 pH值 按照附录C的规定进行测定。 6.5固定碳含量 按照GB/T 3521的规定进行测定。 6.6 比表面积 按照GB/T 19587的规定进行测定。 6.7真密度 按照附录D的规定进行测定。 6.8层间距d002和石墨化度 按照附录E的规定进行测定。 6.9石墨取向性(参考性指标) 按照附录F的规定进行测定。 6.10首次库仑效率 按照附录G的规定进行测定。 6.11 首次放电比容量 按照附录G的规定进行测定。 6.12微量金属元素 按照附录H的规定进行测定。 6.13 F-、Cl-、SO42-、NO3-、Br-离子指标 按照附录I的规定进行测定。 6.14硫含量 按照附录J的规定进行测定。 6.15磁性物质 按照附录K的规定进行测定。 6.16粉末压实密度 按照附录L的规定进行测定。 6.17振实密度 按照附录M的规定进行测定。 6.18有机物含量 按照EPA5021：1996中VOC的顶空进样分析或按EPA 8260C：2006进行测定。 6.19 限用物质含量 按照GB/T 26125的规定进行测定。 7检验规则 7.1 采样方法 7.1.1 取样和制样按照GB/T 1427规定进行，不锈钢取样钎为不锈钢牌号316或同等类型，直径不大于30 mm，长度为500 mm～700 mm。 7.1.2样品盛入塑料样品罐后，应在外壁贴上标签，标签包括下列内容： a)样品类别及编号； b)总体物料批号及数量； c)样品量； d)采样日期； e)采样者姓名。 7.1.3样品应密封保存，并贮存在防破包、防雨、防潮等环境中。备用样品贮存期为18个月。 7.2检验分类 7.2.1 出厂检验：对每批次粒度、碳含量、水分、振实密度、粉末压实密度、比表面积、微量元素(铁、钠、铬、铜、镍、铝和钼)、磁性物质(铁+铬+镍+锌+钴)、首次放电比容量和首次库仑效率检验合格后盖质量检验章。 7.2.2型式检验：对本标准中规定的技术要求全部进行检验。在有下列情况之一时进行型式检验。 ——原材料的型号、供货厂家等有变更时； ——生产工艺流程有变化时； ——生产设备停产半年以上，又开始生产时； ——客户有特殊要求时。 7.3验收规则 7.3.1 产品符合表1、表3、表4和表5中全部技术指标为合格品。若有1项指标达不到本标准的要求，应从同批产品的取样袋中加倍取样对不合格项复检，复检全部合格判为合格，有一项不合格判为不合格。 7.3.2生产厂应保证出厂的产品符合本标准规定的要求，每批产品出厂时，随货附带检验报告。 7.3.3收货方复验期限为两个月，如有异议时，应双倍取样重新检验，如仍有争议，由具有资质的第三方检测机构检验。 8 包装、标志 8.1 产品的包装、标志应符合GB/T 191的规定，净重由供需双方协商。 8.2包装应在干燥环境条件下进行，先将产品装入防水包装袋(推荐用PE密封袋、铝塑密封袋)。特殊的包装要求由供需双方商定。 8.3包装好后的产品再用外包装材料包装，包装材料由供需双方商定。 8.4标志应符合GB/T 6388的规定，一般应包括下列内容，也可根据客户需求进行标志： ——产品名称； ——产品代号及规格； ——本标准编号； ——净重； ——生产厂名； ——生产批号； ——警示标志； ——其他标志。 9储存和运输 9.1 产品应贮存在通风、干燥的仓库内。 9.2产品堆放应整齐、清洁，生产批号等标志应清晰辨认。 9.3避免与可使产品变质或使包装袋损坏的物品混存、混运。 9.4贮存和运输过程中应保证产品的包装清洁和不破损，凡漏出包外的产品，不得返入包内。 9.5供方应提供本产品的安全技术说明书(MSDS)和安全标签。 表3典型天然石墨类离子电池负极材料技术指标 技术指标 产品代号 NG-I-19-360 NC-Ⅱ-13-365 NC-Ⅲ-23-345 理化性能 粒度 分布 D10，μm 12.0±2.0 9.0±2.0 14.0±2.0 D50，μm 19.0±2.0 13.0±2.0 23.0±2.0 D90，μm 28.0±3.0 33.0±3.0 33.0±3.0 Dmax，μm ≤50 ≤70 ≤50 固定碳，％ ≥99.97 ≥99.97 99.95～99.90 水分，％ ≤0.2 ≤0.2 ≤0.2 pH值 8±1 5.5±1 5.5±1 振实密度，g/cm3 ≥1.20 ≥1.00 ≥1.15 粉末压实密度，g/cm3 ≥1.65 1.55～1.65 1.45～1.55 真密度，g/cm3 2.24±0.02 2.24±0.02 2.22±0.02 比表面积，m2/g ≤1.5 ≤2.5 5.0±0.5 层间距d002，nm 0.335 7±0.000 3 0.335 8±0.000 3 0.335 8±0.000 3 电化学性能 首次库仑效率，％ ≥95.0 ≥93.0 ≥91.0 首次放电比容量，(mA·h)/g ≥360.0 ≥365.0 ≥345.0 微量 金属 元素 铁，ppm ≤10 ≤30 ≤50 钠，ppm ≤5 ≤5 ≤5 铬，ppm ≤5 ≤5 ≤5 铜，ppm ≤5 ≤5 ≤5 镍，ppm ≤5 ≤5 ≤5 铝，ppm ≤5 ≤5 ≤5 钼，ppm ≤5 ≤5 ≤5 磁性物质 铁+铬+镍+锌+钴，ppm <0.1 <0.1 0.1～0.5 硫含量 硫，ppm ≤20 ≤20 ≤20 限用物质 镉及其化合物，ppm ≤5 ≤5 ≤5 铅及其化合物，ppm ≤5 ≤5 ≤5 汞及其化合物，ppm ≤5 ≤5 ≤5 六价铬及其化合物，ppm ≤5 ≤5 ≤5 多溴联苯，ppm ≤5 ≤5 ≤5 多溴联苯醚，ppm ≤5 ≤5 ≤5 阴离子 F-，ppm ≤10 ≤10 ≤10 Cl-，ppm ≤30 ≤30 ≤30 Br-，ppm ≤10 ≤10 ≤10 NO3-，ppm ≤10 ≤10 ≤10 SO2-，ppm ≤50 ≤50 ≤50 有机物 丙酮，ppm ≤1 ≤1 ≤1 异丙醇，ppm ≤1 ≤1 ≤1 甲苯，ppm ≤1 ≤1 ≤1 乙苯，ppm ≤1 ≤1 ≤1 二甲苯，ppm ≤1 ≤1 ≤1 苯，ppm ≤1 ≤1 ≤1 乙醇，ppm ≤1 ≤1 ≤1 表4 典型人造石墨类锂离子电池负极材料技术指标 技术指标 产品代号 AG-CMB-I-24-355 AG-NAG-Ⅱ-20-340 AG-PAG-Ⅲ-18-300 理化性能 粒度 分布 D10，μm 17.0±2.0 9.0±2.0 7.0±2.0 D50，μm 24.5±2.0 20.0±2.0 18.0±2.0 D90，μm 35.0±3.0 40.0±3.0 35.0±3.0 Dmax，μm ≤60 ≤70 ≤75 固定碳，％ ≥99.97 ≥99.95 ≥99.70 水分，％ ≤0.2 ≤0.2 ≤0.2 pH值 8±1 5.5±1 5.5±1 振实密度，g/cm3 ≥1.30 ≥1.00 ≥1.00 粉末压实密度，g/cm3 ≥1.60 ≥1.20 1.30～1.45 真密度，g/cm3 2.24±0.02 2.23±0.03 2.23±0.03 比表面积，m2/g 0.8±0.3 4.0±0.5 4.0±0.5 层间距d002，nm 0.335 7±0.000 3 0.335 8±0.000 3 0.336 0±0.000 3 电化学性能 首次库仑效率，％ ≥95.0 ≥93.0 ≥90.0 首次放电比容量，mAh/g ≥355.0 ≥340.0 ≥820.0 微量 金属 元素 铁，ppm ≤20 ≤50 ≤100 钠，ppm ≤5 ≤5 ≤5 铬，ppm ≤5 ≤5 ≤5 铜，ppm ≤5 ≤5 ≤5 镍，ppm ≤5 ≤5 ≤5 铝，ppm ≤5 ≤5 ≤5 钼，ppm ≤5 ≤5 ≤5 磁性物质 铁+铬+镍+锌+钴，ppm <0.1 <0.1 0.5～1.5 硫含量 硫，ppm ≤20 ≤20 ≤20 限用物质 镉及其化合物，ppm ≤5 ≤5 ≤5 铅及其化合物，ppm ≤5 ≤5 ≤5 汞及其化合物，ppm ≤5 ≤5 ≤5 六价铬及其化合物，ppm ≤5 ≤5 ≤5 多溴联苯，ppm ≤5 ≤5 ≤5 多溴联苯醚，ppm ≤5 ≤5 ≤5 阴离子 F-，ppm ≤10 ≤10 ≤10 Cl-，ppm ≤30 ≤30 ≤30 Br-，ppm ≤10 ≤10 ≤10 NO3-，ppm ≤10 ≤10 ≤10 SO42-，ppm ≤50 ≤50 ≤50 有机物 丙酮，ppm ≤1 ≤1 ≤1 异丙醇，ppm ≤1 ≤1 ≤1 甲苯，ppm ≤1 ≤1 ≤1 乙苯，ppm ≤1 ≤1 ≤1 二甲苯，ppm ≤1 ≤1 ≤1 苯，ppm ≤1 ≤1 ≤1 乙醇，ppm ≤1 ≤1 ≤1