GB/T 31963-2015RE-Mg-Ni-base superlattice hydrogen storage powder used in negative electrodes of nickel-metal hydride batteries (English PDF)
金属氢化物-镍电池负极用稀土镁系超晶格贮氢合金粉
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 11, 2015
Implementation date
August 1, 2016
Scope
GB/T 31963-2015 is the English-translated version of 金属氢化物-镍电池负极用稀土镁系超晶格贮氢合金粉.
GB/T 31963-2015 is the Chinese standard "RE-Mg-Ni-base superlattice hydrogen storage powder used in negative electrodes of nickel-metal hydride batteries".
Its scope clause reads: This standard specifies the metal hydride - Nickel battery cathode rare earth magnesium-based hydrogen storage alloy powder superlattice requirements, test methods, inspection rules And signs, packaging, transportation, storage and quality certificate.
This standard applies to the metal hydride - Nickel battery cathode material of rare earth magnesium-based hydrogen storage alloy powder superlattice. Its clauses include requirements.
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Document preview — GB/T 31963-2015
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 65
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Requirements
- 3.1 Categories
- 3.2 Chemical composition
1 Scope
This standard specifies the metal hydride - Nickel battery cathode rare earth magnesium-based hydrogen storage alloy powder superlattice requirements, test methods, inspection rules
And signs, packaging, transportation, storage and quality certificate.
This standard applies to the metal hydride - Nickel battery cathode material of rare earth magnesium-based hydrogen storage alloy powder superlattice.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments versions) are applicable to this document.
Determination of GB/T 1479.1 metal powder bulk density - Part 1. funnel method
GB/T 5158.4 Determination of oxygen reduction of metal powder - Part 4. Restore - Determination of total oxygen extraction
Determination of GB/T 5162 metal powder tap density
GB/T 17803 grades representation of rare earth products
GB/T 19077.1 laser diffraction particle size analysis - Part 1. General
Determination of mercury, cadmium, lead content GB/T 20155 battery
21931.1 nickel, ferronickel and nickel alloys - Determination of carbon content GB/T frequency combustion infrared absorption method
GB/T 26412 RE hydride - Nickel battery cathode with rare earth based AB5 hydrogen storage alloy powder
GB/T 29918 rare earth based AB5 type hydrogen storage alloy pressure - composition isotherms (PCI) Test Method
YS/T 484 Nickel-metal hydride battery with a hydrogen storage alloy negative electrode capacity ratio measurement
3 Requirements
3.1 Categories
Products by electrochemical performance is divided into three grades LaMgNi-PT-330/300-Mg03, LaMgNi-DZ-320/300-Mg01,
LaMgNi-GR-350/200-Mg02, product grades representation shall comply with GB/T 17803 of.
3.2 Chemical composition
Chemical composition of the product shall comply with the provisions in Table 1. For a party with special requirements, supply and demand sides can be negotiated.
Table 1 grade
Chemical composition (mass fraction) /%
Principal component impurities, not more than
RE Mg Ni CO Cd Pb Hg
Low magnesium level 35 ~ 45 > 70 0.5 ~ 1.5 40 ~
Magnesium level 42 ~ 30 > 45 ~ 70 1.5 ~ 2.5
High magnesium level of 25 to 40 > 50 to 70 2.5 to 3.5
0.1 0.03 0.002 0.002 0.0005 […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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