HG/T 4067-2015Lithium hexafluorophosphate electrolyte solution (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard replaces HG/T 4067-2008 Lithium hexafluorophosphate and cell liquor of lithium Hexafluorophosphate - Part 2: Cell liquor of lithium hexafluorophosphate; compared with HG/T 4067-2008, the main technical changes, except editorial changes, are as follows.

-- Modify the scope of application of cell liquor of lithium hexafluorophosphate (see 1; 1 of the 2008 edition);

-- Add the classification of cell liquor of lithium hexafluorophosphate (see 3);

-- Adjust the index requirements for sulfate content, iron content and sodium content (see 4.2; 3.2 of the 2008 edition);

-- Add the index requirements for aluminum (Al), calcium (Ca), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), magnesium (Mg), nickel (Ni), lead (Pb), zinc (Zn) and arsenic (As) (see 4.2);

-- Modify the determination method of chloride to turbidimetric method (see 5.4; 4.9 of the 2008 edition);

-- Add the colorimeter method (arbitration method) for the measurement of chromaticity (see 5.6; 4.3 of the 2008 edition);

-- Add the density instrument method (arbitration method) for the measurement of density (see 5.7; 4.4 of the 2008 edition).

1 Scope

This Standard specifies the classification, requirements, test methods, inspection rules, marking, labeling, packaging, transportation and storage of cell liquor of lithium hexafluorophosphate.

This Standard applies to cell liquors containing lithium hexafluorophosphate in different solvent systems. This product is used in the production of lithium-ion batteries and lithium-ion ultra-capacitors.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB 150.1, Pressure vessels - Part 1: General requirements

GB 150.2, Pressure vessels - Part 2: Materials

GB 150.3, Pressure Vessels - Part 3: Design

GB 150.4, Pressure vessels - Part 4: Fabrication, inspection and testing, and acceptance

GB 190-2009, Packing symbol of dangerous goods

GB/T 191-2008, Packaging - Pictorial marking for handling of goods

GB/T 605-2006, Chemical reagent - General method for the measurement of colour

GB/T 6678, General principles for sampling chemical products

GB/T 6682-2008, 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 19282-2014, Analytic method for lithium hexafluorophosphate

3 Classification

Cell liquor of lithium hexafluorophosphate is divided into two categories according to its different uses.

4 Requirements

4.2 Cell liquor of lithium hexafluorophosphate, when tested according to the test method specified in this Standard, shall meet the technical requirements in Table 1.

5 Test methods

6 Inspection rules

6.1 This Standard adopts type inspection and exit-factory inspection. Type inspection and exit-factory inspection shall meet the following stipulations.

6.2 The cell liquor of lithium hexafluorophosphate, which is produced continuously - with the same materials and basically under the same production conditions - by the production enterprise, shall be the same batch. Each batch of products shall not exceed 50 t.

6.3 The number of sampling units shall be determined in accordance with the provisions of GB/T 6678. Use clean and dry corrosion-resistant bottles for airtight sampling. The sampling volume of each batch of products shall not be less than 200 g.

6.4 If any of the inspection results does not meet the requirements of this Standard, re-inspection shall be taken from twice the number of products.

7 Marking, labeling

7.1 There shall be firm and clear markings on the outer packaging of the cell liquor product of lithium hexafluorophosphate, including.

7.2 Each batch of cell liquor products of lithium hexafluorophosphate leaving the factory shall be accompanied by a quality certificate, including.

8 Packaging, transportation and storage

8.1 Cell liquor of lithium hexafluorophosphate shall be packaged under airtight and dry conditions. The products shall be packaged in stainless-steel barrels that meet the requirements of GB 150.1~150.4.

8.2 During transportation, there shall be coverings to avoid the sun and rain, so as to prevent the packaging from being damaged. For special products, select the appropriate transportation conditions according to the instructions attached to the product.

8.3 Keep the original packing barrel intact and airtight; place it in a cool,

8.4 Under the packaging, transportation and storage conditions specified in this Standard, the cell liquor of lithium hexafluorophosphate shall have a shelf life of not less than 2 months from the date of production, and shall still be usable if it passes the inspection after the expiration date. CHEMICAL INDUSTRY STANDARD

ICS 71.060.50

G 12 Record number. 50871-2015 Replacing HG/T 4067-2008 Cell liquor of lithium hexafluorophosphate Issued on. JULY 29, 2015 Implemented on. JANUARY 01, 2016 Issued by. Ministry of Industry and Information Technology of the People's Republic of China […]