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Brief Introduction
The system constitute with advanced gel lead battery cell; the rated voltage of cell is 2V and 12V, which are respectively developed, designed and produced according toGermany DIN40742, Germany DIN43534 standards. and the performance has reached and exceeded the standards IEC60896-21 and 22(2005).
Technical features and advantages
Electrolyte: primary material adopts Germany gas silicon dioxide, the material will be the thin collosol state when it's injected initially, and it can fill the whole plate space of battery, and each part of plate can react evenly. The flooded electrolyte design can avoid dry up of battery when it's in high temperature andover charged, the thermal capacity is big and heat-elimination is fine, accordingly, thermal runaway can be avoided. The electrolyte is in the gel statein finished battery without flowing, accordingly, leakage and lamination can be avoided.
Plate: positive plate adopts tubular type plate which can effectively prevent active substance falling, the positive plate frame is molded with multi-component alloy, the crystal particle of alloy structure is tiny and dense, the corrosion-resisting performance is fine and service life is long. Negative plate adopts pasted plate, the grid adopts radiated structure which enhances utilization ratio of active substance and discharge capability of strong current, and the charge reception capability is strong.
battery case: it's made of ABS material, corrosion prevention is fine, strength is high, and appearance is beautiful, it can be sealed with lid reliably which can prevent potential leakage risk.
partition: adopt special micro-pore PVC-SiO2 separator from Europe AMER-SIL Company, the porosity of separator is big and resistance is low. It has bigger electrolyte storage space.
Terminal Seal: the built-in copper core lead-base terminal post has stronger current carrying capacity and corrosion resistance. The unique double sealing structure of terminal post can effectively avoid leakage, to guarantee reliability of terminal post sealing.
Valve: adopt Germany technology, constant opening and closing valve, high reliability, the accumulator case expansion, damage and electrolyte dry up can be avoided.
Technical parameters |
2V serial |
12V serial |
Capacity(Ah) |
300-3000 |
50-200 |
Rated voltage(V) |
2 |
12 |
Float charge(V)(100%) |
2.25 |
13.5 |
Average charge(V) |
2.3 |
13.8 |
Discharge cut-off voltage(V) |
1.8V |
10.8 |
Charging rate |
0.1-0.3C10 |
0.1-0.3C10 |
Max discharging rate |
3C(5s) |
3C(5s) |
Conformity |
>99% |
>99% |
Charging and discharging efficiency |
>90% |
90% |
Monthly self-discharge rate(%) |
<2% |
<3% |
Internal resistance(mΩ) |
about0.3 |
about2.5 |
Cycle life(60%DOD) |
2400 |
800 |
Cycle life(80%DOD) |
1500 |
500 |
Standard working temperature (℃) |
25 |
25 |
Temperature range(℃) |
-70 |
-70 |
System case
National Grid Solar-Wind-Storage Integration Demonstration Project demonstration project
The total capacity of this system is 1MW/6MWh, which adopt 1344 GEL Lead batteries. 24 batteries make up one cluster with one battery monitoring module. Total 14 clusters make up of one storage unit with one set battery management system. 1MW/6MWh GEL Lead-acid storage system is made up of four storage units in parallel connection.
South Grid Wind-Solar-Storage Demonstration Project
The total capacity of this system is 250kW/1MWh, which adopt 336 GEL Lead batteries. 24 batteries make up one cluster with one battery monitoring module. Total 14 cell clusters make up one storage unit with one set battery management system.
3MW off-grid photovoltaic plant of CGN
This storage system is used to 3.062MW off-grid photovoltaic plant in Qianlian city, 3.062MW off-grid solar station, and adopt 2016 pcs GEL Lead batteries.336 pcs 2V 1000Ah cells connect in series,battery management, air-conditioner,security-systems, intelligent control system, telecom unit and interface unit are all integrated into 40QH container.