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
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 d002
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
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
Contents of GB/T 24533-2019
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 d002
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