GB/T 26008-2020 in English

《GB/T 26008-2020电池级单水氢氧化锂》由TC243（全国有色金属标准化技术委员会）归口，TC243SC3（全国有色金属标准化技术委员会稀有金属分会）执行，主管部门为中国有色金属工业协会。

ChinaStandards.net 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 drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 26008-2010 Battery grade lithium hydroxide monohydrate. The following main technical changes have been made with respect to GB/T 26008-2010:

——The application scope of this standard has been modified (see Clause 1 herein; Clause 1 of Edition 2010);

——The clause "Terms and definitions" has been added (see Clause 3);

——The appearance classification has been added (see 4.1.2);

——The expression method for the main contents of LiOH has been modified (see 4.2 herein; 3.2 of Edition 2010);

——The content indexes of some elements have been modified (see 4.2 herein; 3.2 of Edition 2010);

——The requirements for boron contents have been added (see 4.2).

——The requirements for magnetic impurity contents have been added (see 4.3);

——The requirements for particle size have been added (see 4.4).

——The requirements for sampling has been modified (see 6.4 herein; 5.4 of Edition 2010);

——The requirements for packaging have been modified (see 7.2 herein; 6.2 of Edition 2010);

——The "Determination of boron contents in battery grade lithium hydroxide monohydrate — Inductively coupled plasma atomic emission spectrometric method" has been added (see Annex A);

——The "Determination of magnetic impurity contents in battery grade lithium hydroxide monohydrate — Inductively coupled plasma atomic emission spectrometric method" has been added (see Annex B).

This standard was proposed by China Nonferrous Metals Industry Association.

This standard is under the jurisdiction of National Technical Committee on Nonferrous Metals of Standardization Administration of China (SAC/TC 243).

The previous edition of this standard is as follows:

——GB/T 26008-2010.


Battery grade lithium hydroxide monohydrate

1 Scope

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate and order form (or contract) of the battery grade lithium hydroxide monohydrate.

This standard is applicable to the battery grade lithium hydroxide monohydrate produced with various methods.

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 documents (including any amendments) applies.

GB 190-2009 Packing symbol of dangerous goods
GB/T 191-2008 Packaging — Pictorial marking for handling of goods
GB/T 6678 General rules for sampling liquid chemical products
GB/T 11064 (all parts) Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride
GB/T 19077 Particle size analysis — Laser diffraction method

3 Terms and definitions

For the purposes of this standard, the following term and definition apply.

3.1
magnetic impurity
substances that can be directly or indirectly adsorbed by ferromagnets
Note: It mainly refers to magnetic substances in transition elements iron, chromium, nickel, zinc and their alloys. This term refers to the combination of iron, chromium, nickel and zinc in this standard.

4 Technical requirements

4.1 Product classification

4.1.1 According to chemical composition, the lithium hydroxide monohydrate are classified into three designations, i.e., LiOH·H2O-D1, LiOH·H2O-D2 and LiOH·H2O-D3.

4.1.2 Battery grade lithium hydroxide monohydrate is classified into crystal type and micropowder type by appearance.

4.2 Chemical composition

Chemical composition of the battery grade lithium hydroxide monohydrate shall meet those specified in Table 1.

Table 1 Chemical composition of products
Product designation Chemical composition (mass fraction)/%
Main content of LiOH Impurity content, ≤
Na K Fe Ca Cu Mg Mn Si Cl SO42- CO32- B Acid insolubles
LiOH·H2O-D1 56.5~57.5 0.005 0.003 0.0007 0.002 0.0001 0.001 0.001 0.005 0.002 0.008 0.40 0.005 0.005
LiOH·H2O-D2 56.5~57.5 0.005 0.003 0.0007 0.005 0.0001 0.001 0.001 0.005 0.002 0.010 0.50 0.005 0.005
LiOH·H2O-D3 56.5~57.5 0.010 0.005 0.0007 0.010 0.0001 0.001 0.001 0.005 0.002 0.010 0.50 0.010 0.005

4.3 Magnetic impurity

The contents of magnetic impurity in the products shall meet those specified in Table 2.

Table 2 The contents of magnetic impurity In μg/kg
Product designation LiOH·H2O-D1 LiOH·H2O-D2 LiOH·H2O-D3
Magnetic impurity, ≤ 50 100 200

4.4 Particle size

The particle size D50 of battery grade lithium hydroxide monohydrate micropowder products shall be 3 μm ≤ D50 ≤ 20 μm.

4.5 Appearance quality

4.5.1 The battery grade lithium hydroxide monohydrate crystal products are white crystalline particles with fluidity and without visible inclusions.

4.5.2 The battery grade lithium hydroxide monohydrate micropowder products are white powder with fluidity and without visible inclusions.

5 Test methods

5.1 The analysis of chemical composition shall be carried out in accordance with GB/T 11064 and Annex A herein.

5.2 The analysis of magnetic impurity in the products shall be carried out in accordance with Annex B.

5.3 The analysis of particle size of the products shall be carried out in accordance with GB/T 19077.

5.4 The appearance quality of products shall be inspected visually.

6 Inspection rules

6.1 Inspection and acceptance

6.1.1 The products shall be inspected by the supplier which shall ensure that the product quality meets the requirements of this standard and order form (or contract) and shall fill in the quality certificate.

6.1.2 The purchaser shall inspect the products received according to those specified in this standard; if the inspection results cannot meet the requirements of this standard and the order form (or contract), it shall be proposed to the supplier in written form, and shall be settled through agreement between the supplier and purchaser. The objection regarding the appearance quality shall be submitted within one month from the date of receipt. Other performance rejection shall be submitted within three months from the date of receipt. Any arbitration, if necessary, shall be determined through negotiation between the supplier and the purchaser.

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation, storage and quality certificate
8 Order form (or contract) content
Annex A (Normative) Determination of boron content in battery grade lithium hydroxide monohydrate — Inductively coupled plasma atomic emission spectrometry
Annex B (Normative) Determination of magnetic impurity contents in battery grade lithium hydroxide monohydrate — Inductively coupled plasma atomic emission spectrometric method