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Hydrogen Storage Electrode Alloy Powders
We can supply hydrogen storage electrode alloy powders with different specifications.
The chemical and physical characteristics can be adjusted according to the requirements of the customers.
1.Chemical compositions
| Type | C | L | T | S | E | ||
| Molecular Formula | ABx | ABx | ABx | ABx | ABx | ||
| x=5.1±0.10 | x=5.1±0.10 | x=4.85±0.10 | x=5.15±0.10 | x=5.25±0.10 | |||
| Major elements | Mm(trE)(%) | 32.7±1.0 | 32.6±1.0 | 34.0±1.0 | 32.4±1.0 | 32.2±1.0 | |
| Co(%) | 10.0±0.5 | 10.0±0.5 | 10.2±0.5 | 5.0~9.0 | 3.0~7.0 | ||
| Impurities (%) | O | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | |
| Fe | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ||
| Mg | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 | ||
| Zn | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ||
| Ca | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ||
| C | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ||
| Pb | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ||
| Electrochemical Property | Cycle life (100%DOD) | ≥500 | ≥600 | ≥400 | ≥500 | ≥500 | |
| Electrochemical capacity | ≥320mAh/g | ≥310mAh/g | ≥300mAg/g | ≥320mAh/g | ≥300mAh/g | ||
| Voltage flat(1.2V/1.0V) | ≥80% | ≥80% | ≥85% | ≥80% | ≥80% | ||
| Property of hydrogen absorbing and releasing | Hydrogen absorbing capacity(Hab/m) | 10atm | >0.90H/M | >0.90H/M | >0.85H/M | >0.90H/M | >0.85H/M |
| 3atm | >0.80H/M | >0.80H/M | >0.65H/M | >0.80H/M | >0.78H/M | ||
| Equilibrium hydrogen pressure(at H/M=0.4) | 0.4±0.1atm | 0.35±0.1atm | 1.3±0.1atm | 0.5±0.1atm | 0.45±0.1atm | ||
| Plateau Property | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ||
| Recommend usages | Suitable to produce high capacity battery | Suitable to produce long cycle life battery | Suitable to produce low temperature performance battery | Suitable to produce power battery | Suitable to produce economic battery | ||
2.Physical characteristics
| Partied size recommended for dry process | Partied size recommended for wet process | ||
| LSA D50 | 68±5um | 44±5um | |
| Sieve analysis size | -100目(150um) | 100% | 100% |
| -140目(106um) | ≥97% | ≥99% | |
| -200目(75um) | ≥65% | ≥85% | |
| -325目(45um) | ≥30% | ≥60% | |
| -400目(38um) | ≤23% | ≥40% | |
| Apparent density | ≥3.4g/cm3 | ≥3.2g/cm3 | |
| Tap density | ≥4.4g/cm3 | ≥4.4g/cm3 | |
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