YS/T 1030-2017Lithium-riched manganese cathode material (English PDF)

4.1 Product classification

Lithium-rich manganese cathode materials are classified into two categories according to their performance and application. cycle-type and high-voltage type.

4.2 Chemical composition

The chemical composition of the product shall conform to the provisions of Table 1.

1 Joint Committee on Powder Diffraction Standards.

4.15 Other requirements

If the buyer has special requirements for lithium-rich manganese cathode materials, these can be negotiated between the supplier and the buyer.

5.1 Chemical composition

The testing of Mn, Li, Ni, Co, Na, K, Cu, Ca, Fe, Zn, Si in the chemical composition of the product shall be carried out in accordance with the provisions of YS/T 1006.2.The testing of other elements shall be carried out according to the methods agreed upon by both the supplier and the buyer.

5.2 Moisture content

The moisture content of the product shall be determined according to GB/T 6283.

5.3 pH value

The pH value of the product shall be determined according to GB/T 1717.

5.4 Residual alkali content

The residual alkali content of the product shall be determined according to a method agreed upon by both the supplier and the buyer.

5.5 Magnetic foreign matter

The content of magnetic foreign matter in the product shall be determined according to

Appendix K of GB/T 24533-2009.

5.6 Particle size distribution

The particle size distribution of the product shall be determined according to GB/T

19077.1.

5.7 Tap density

The tap density of the product shall be determined according to GB/T 5162.

5.8 Specific surface area

The specific surface area of the product shall be determined according to GB/T 19587.

5.9 Appearance quality

The appearance quality of the product shall be visually inspected.

5.10 Crystal structure

The crystal structure of the product shall be determined using X-ray powder diffraction.

5.11 Discharge specific capacity

The initial discharge specific capacity of the product shall be determined in accordance with GB/T 23365.For high-voltage types, the charge/discharge voltage range is 2.0 V

~ 4.8 V, with other conditions remaining unchanged.

5.12 Charge/discharge efficiency

The initial charge/discharge efficiency of the product shall be determined in accordance with GB/T 23365.For high-voltage types, the charge/discharge voltage range is 2.0 V

~ 4.8 V, with other conditions remaining unchanged.

5.13 Cycle life

The cycle life of the product shall be determined in accordance with GB/T 23366.For high-voltage types, the charge/discharge voltage range is 2.0 V ~ 4.6 V, with other conditions remaining unchanged.

6.1 Inspection and acceptance

6.1.1 The supplier shall inspect the product, to ensure that the product quality conforms to this standard and the purchase order (or contract); complete a product quality certificate.

6.1.2 The buyer shall inspect the received product in accordance with this standard and the purchase order (or contract). If the inspection results do not conform to this standard and the purchase order (or contract), the supplier shall be notified within one month from the date of receipt of the products; the matter shall be resolved through negotiation between the supplier and the buyer. If arbitration is required, the arbitration sampling shall be conducted jointly by both the supplier and the buyer at the buyer's location.

6.2 Group-batching

Products shall be submitted for acceptance in batches. Each batch shall consist of the same mixture; the mass of each batch shall not exceed 5000 kg. Special requirements from the buyer shall be determined through negotiation between the supplier and the buyer.

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