GB/T 45327-2025 Lithium-rich lithium iron oxide
1 Scope
This document specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transport, storage and accompanying documents, and order contents of lithium-rich lithium iron oxide.
This document is applicable to lithium-rich lithium iron oxide as a lithium supplement additive in cathode materials for lithium-ion batteries.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 5162 Metallic powders - Determination of tap density
GB/T 5211.6 General methods of test for pigments and extenders - Part 6: Determination of pH value of an aqueous suspension
GB/T 5314 Powders for powder metallurgical purposes - Sampling
GB/T 6283 Chemical products - Determination of water - Karl·Fischer method (general method)
GB/T 6388 Transport package shipping mark
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 19077 Particle size analysis - Laser diffraction methods
GB/T 19587 Determination of the specific surface area of solids by gas adsorption using the BET method
GB/T 42161 Electrochemical performance test of lithium iron phosphate - Test method for the initial discharge specific capacity and the initial efficiency
GB/T 44330 Lithium-ion battery cathode materials - Determination of powder compaction density
YS/T 1028.5 Methods for chemical analysis of lithium iron phosphate - Part 5: Determination of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt, manganese content - Inductively coupled plasma atomic emission spectrometry
YS/T 1472.4 Methods for chemical analysis of lithium-rich manganese-based cathode materials - Part 4: Determination of lithium, nickel, cobalt, sodium, potassium, copper, calcium, iron, magnesium, zinc, aluminum, and silicon content - Inductively coupled plasma atomic emission spectrometry
JCPDS[ Joint Committee on Powder Diffraction Standards.](75-1253) Standard X-ray diffraction powder patterns - Lithium-rich lithium iron oxide
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
complementary specific capacity of the lithium supplement
difference between the initial charge specific capacity and the initial discharge specific capacity under specified conditions
3.2
moisture resistance performance
ability to resist erosion in humid environments within a defined time and humidity range
Note: Expressed by moisture absorption rate. A lower absorption rate indicates stronger resistance to humid environments, i.e., better moisture resistance performance.
4 Product classification
The products are divided into three categories: LFO-Ⅰ, LFO-Ⅱ and LFO-Ⅲ according to the complementary specific capacity of the lithium supplement.
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transport, storage and accompanying documents
9 Order contents
Annex A (Informative) X-ray diffraction pattern of lithium-rich lithium iron oxide
GB/T 45327-2025 Lithium-rich lithium iron oxide
1 Scope
This document specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transport, storage and accompanying documents, and order contents of lithium-rich lithium iron oxide.
This document is applicable to lithium-rich lithium iron oxide as a lithium supplement additive in cathode materials for lithium-ion batteries.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 5162 Metallic powders - Determination of tap density
GB/T 5211.6 General methods of test for pigments and extenders - Part 6: Determination of pH value of an aqueous suspension
GB/T 5314 Powders for powder metallurgical purposes - Sampling
GB/T 6283 Chemical products - Determination of water - Karl·Fischer method (general method)
GB/T 6388 Transport package shipping mark
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 19077 Particle size analysis - Laser diffraction methods
GB/T 19587 Determination of the specific surface area of solids by gas adsorption using the BET method
GB/T 42161 Electrochemical performance test of lithium iron phosphate - Test method for the initial discharge specific capacity and the initial efficiency
GB/T 44330 Lithium-ion battery cathode materials - Determination of powder compaction density
YS/T 1028.5 Methods for chemical analysis of lithium iron phosphate - Part 5: Determination of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt, manganese content - Inductively coupled plasma atomic emission spectrometry
YS/T 1472.4 Methods for chemical analysis of lithium-rich manganese-based cathode materials - Part 4: Determination of lithium, nickel, cobalt, sodium, potassium, copper, calcium, iron, magnesium, zinc, aluminum, and silicon content - Inductively coupled plasma atomic emission spectrometry
JCPDS[ Joint Committee on Powder Diffraction Standards.](75-1253) Standard X-ray diffraction powder patterns - Lithium-rich lithium iron oxide
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
complementary specific capacity of the lithium supplement
difference between the initial charge specific capacity and the initial discharge specific capacity under specified conditions
3.2
moisture resistance performance
ability to resist erosion in humid environments within a defined time and humidity range
Note: Expressed by moisture absorption rate. A lower absorption rate indicates stronger resistance to humid environments, i.e., better moisture resistance performance.
4 Product classification
The products are divided into three categories: LFO-Ⅰ, LFO-Ⅱ and LFO-Ⅲ according to the complementary specific capacity of the lithium supplement.
Contents of GB/T 45327-2025
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transport, storage and accompanying documents
9 Order contents
Annex A (Informative) X-ray diffraction pattern of lithium-rich lithium iron oxide
