Week 1 Understanding Different Battery Chemistry
IAM LIVE EV BATCH 16 STUDENT
1.Prepare a table which includes materials & chemical reactions occurring at the anode and c athode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells.Give your detailed explanation on it
| SL NO | BATTERY | FULLFORM NAME | CATHODE | ANODE | Chemical REACTION(ANODE and= CATHODE) | ||||
| 1 | LCO |
Lithium Cobalt Oxide |
LiCo02 | Graphite | LiC6 + Co02 > C6 + LiCo | ||||
| 2 | LMO | Lithium Manganese Oxide | LiMn204 | Graphite | LiC6 +Mn204 <->C6 + Li | ||||
| 3 | NCA | Nickel Cobalt
Aluminium |
LiNiCoAlo2 | Graphite | LiC6 + NiCoaLO2 <-> C6 + Li | ||||
| 4 | NMC | Nickel Manganese Cobalt Oxide | LiNi0.8Mn0.1 Co0.1O2. | Graphite | LiC6+ NiMnCo02 <-> C6 + L | ||||
| 5 | LFP | Lithium Ion Phospate | LiFePo4 | Graphite |
|
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| 6 | LTO | Lithium Titanium Phospate | Limn2O4 | Titanate | Li2TiO3+2Mn204<->TiO. |
2.Compare the differences between each type of Li+ion batteries based on their characteristics
|
Specifications |
Lead Acid |
NiCd |
NiMH |
Li-ion Cobalt Manganese Phosphate |
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|
Specific energy |
30-50 |
45-80 |
60-120 |
150-250 |
100-150 |
90-120 |
|
Internal resistance |
Very Low |
Very low |
Low |
Moderate |
Low |
Very low |
|
Charge time |
8-16h |
1-2h |
2-4h |
2-4h |
1-2h |
1-2h |
|
Overcharge tolerance |
High |
Moderate |
Low |
Low. No trickle charge |
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|
Self.discharge/ month (room temp) |
5% |
20% |
30 |
<5% |
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|
Cell voltage (nominal) |
2V |
1.2V |
1.2V |
3.6V |
3.7V |
3.2-3.3V |
|
Charge cutoff voltage (V/cell) |
2.40 |
Full charge detection |
4.20 typical |
3.60 |
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|
Discharge cutoff voltage (V/cell. 1C) |
1.75V |
1.00V |
2.50-3.00V |
2.50V |
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|
Peak load current Best result |
5C |
20C |
5C |
2C |
>30C |
>30C |
|
Charge temperature |
-20 to 50°C |
0 to 45°C |
0 to 45°C |
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|
Discharge temperature |
-20 to 50°C |
-20 to 65°C |
-20 to 60°C |
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|
Maintenance requirement |
3-6 month |
Full discharge every 90 |
Maintenance-free |
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|
Safety requirements |
Thermally |
Thermally stable, fuse |
Protection circuit mandatory |
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|
In use since |
Late 1800s |
1950 |
1990 |
1991 |
1996 |
1999 |
|
Toxicity |
Very high |
Very high |
Low |
Low |
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|
Coulombic |
-90% |
-70% slo v charge |
99% |
|||
|
Cost |
Low |
Moderate |
High |
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