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Lithiumate™ battery blocks

High performance Enerdel battery modules with BMS

The effort to design a new battery pack is significantly reduced through the use of Elithion battery blocks.

These high-performance battery blocks are versatile and economical.

In cooperation with Enerdel, Elithion offers Li-ion battery blocks with a pre-installed Lithiumate BMS cell board.

  • Uses an Enerdel Moxie+ battery module
  • Up to 16 modules in a battery (20 or 22 kWh)
  • High performance (power cells): 21 s Short Discharge Time, among the lowest for Li-ion cells
  • Includes heat sinks for forced air convection, also suitable for attachment to liquid cooling cold plate
  • Easy installation: 4 bore holes, 2 power terminals, 1 small connector to the BMS master
  • Lithiumate Pro BMS cell board (included) takes no additional volume
  • A Lithiumate BMS master is required.

Specifications

Item Conditions Value Units
Arrangement 1P12S, 2P12S, 2P16S or 4P6S
Energy 12 cell, Energy 0.75 kWh
24 cell, Energy 1.51
24 cell, Power 1.40
32 cell, Energy 2.02
32 cell, Power 1.87
Nominal
voltage
6 series 21.4 V
12 series 42.8
16 series 57.1
Nominal
capacity
Bin A
Energy, 1P 17.5 Ah
Energy, 2P 35
Power, 2P 32
Energy, 4P 70
Short
discharge
time
Energy 51 s
Power 21
Max
continuous
current
Energy, 1P 35 A
Energy, 2P 70
Power, 2P 125
160
Energy, 4P 140
Max
continuous
power
Energy, 1P12S 1.5 kW
Energy, 4P6S 2.7
Energy, 2P12S 3.0
Energy, 4P8S 3.6
Energy, 2P16S 4.0
Power, 2P12S 5.4
6.8
Power, 2P16S 9.1
Size 12 cells 90x198x268 mm
24 cells 170x198x268
32 cells 220x198x268
Mass 12 cells 7 kg
24 cells 14
32 cells 19
BMS Lithiumate Pro BMS

Enerdel cell board Click picture to enlarge
Detail view of the Elithion Lithiumate Pro cell board mounted seamlessly inside an Enerdel Moxie+ battery module.

Some highlights of the Lithiumate Pro BMS:
Measures cell voltage and temperature
5 to 600 A current sensors
Evaluates SoC, SoH, Capacity, Resistance
CAN, RS232, dedicated analog and digital I/O
Isolation test, contactor drive
Thermal management

Options

Power vs energy cells

Energy cells have higher capacity; but also higher resistance, and therefore lower efficiency, which may actually result in reduced discharge time compared to power cells.

Specifically, energy cells have 9.4 % more capacity though 138 % more resistance (full capacity range cells).

For continuous duty, whether power cells or energy cells will generate more energy depends on the load:

LOAD: Power cells Energy cells
Constant resistance < 90 mΩ > 90 mΩ Per module
Constant power > 12 kW < 12 kW Per module
Constant current > 350 A < 350 A Per series string
Constant time < 370 s > 370 s
Application Power boost (e.g.: HEV) Energy storage (e.g.: EV)

For variable duty, whether power cells or energy cells will generate more energy depends on the distribution of the load versus time; a detailed analysis is required to answer that question.

The rule of thumb is that power cells are better when the highest performance is required, such as race vehicles, or applications with short pulses of very high current.

Capacity ranges

Enerdel offers cells in 3 capacity bins:

Range: Power cells Energy cells
Full 16 Ah 17.5 Ah
-0.5 15.5 Ah 17 Ah
-1 15 Ah 16.5 Ah

Cell arrangement

Elithion offers both 2P12S and 4P6S modules.

While normally the cells in an Enerdel module are in a 2P12S arrangement, Elithion is able to rearrange them in a 4P6S arrangement.

Such an arrangement results in a half the voltage and a higher maximum current (not quite twice, because because current is limited by the current handling of the terminal posts).

There a few, slight disadvantages to 4P6S modules:

  • Rearranging the cells adds labor and therefore cost
  • The maximum power is reduced
  • The maximum battery pack voltage is 350 V (as opposed to 700 V)

On the other side, using a single string of 4P6S modules is better than using 2 strings in parallel of 2P12S modules:

  • Fewer electronics, reducing cost and improving reliability
  • Higher reliability because cells in parallel help each-other
  • A high resistance cells will not result in the entire pack shutting down

Terminals

Enerdel offers these terminal options:

Type Current rating, continuous [A] Current rating, peak [A] Characteristics
Radsok 125 250 6 mm diameter post, quick connect; requires special-order mate
Standard 125 250 M6 nut; ease of connection; great variety of options
High current 160 480 M6 nut; ease of connection; great variety of options; expensive

Heat sinks

Enerdel offers these heat sink options:

Type Characteristics
Top Box shape forms a tunnel for air flow; resilient top has give that results in excellent contact with a cold plate
Bottom Flush with bottom of module; intended for mating with cold plate; requires resilient, head conducting sheet between heat sink and cold plate
Both Top box heat sink and bottom flush heat sink

 

Block arrangement

A battery pack may use between one and 16 of these blocks, in series and/or in parallel, to achieve a variety of voltages, including (assumimg 2P12S arrangement):

Series Parallel Voltage [V] Energy [kWh] Power [kW]
1 16 44 20.8 736
2 8 88 20.8 736
3 5 131 19.5 690
4 4 175 20.8 736
5 3 219 19.5 690
6 2 263 15.6 552
7 2 307 18.2 644
8 2 350 20.8 736
Series Parallel Voltage [V] Energy [kWh] Power [kW]
9 1 394 11.7 414
10 1 438 13 460
11 1 482 14.3 506
12 1 526 15.6 552
13 1 569 16.9 598
14 1 613 18.2 644
15 1 657 19.5 690
16 1 701 20.8 736

Ordering

Please select one of these battery blocks:

Elithion PNEnerdel PNMax voltage [V]Nominal voltage [V]Nominal capacity [Ah]Cell typeCell binParallelSeriesTotal cellsRated energy [kWh]Max continuous current [A]Max peak current [A]Max continuous power [kW]Max peak power [kW]TerminalsHeat sinks
(1) (2) (3) (4) (5) (6) (7) (8) (9)(9)(9)(9)(10)(11)
4BE0670Bn.a.24.521.470EA46241.511252502.75.4RadsokBoth
4BE0670Rn.a.24.521.470EA46241.511252502.75.4RadsokTop
4BE0870Nn.a.3228.5570EA48322.021252503.67.1HoleBot.
4BE1218RME175-049-RD-BT4942.817.5EA112120.75352501.510.7RadsokTop
4BE1232BMP320-049-TD-BO4942.832PA212241.41252505.410.7RadsokBoth
4BE1232HMP320-049-HC-BO4942.832PA212241.41604806.820.5Hi cur.Both
4BE1232TMP320-049-TD-BO4942.832PA212241.41252505.410.7M6 stdBoth
4BE1235BME350-049-RD-BO4942.835EA212241.51702503.010.7RadsokBoth
4BE1235RME350-049-RD-BT4942.835EA212241.51702503.010.7RadsokTop
4BE1632HMP320-064-HC-BO6457.132PA216321.871604809.127.4Hi cur.Both
4BE1635NME350-064-TH-TM6457.135EA216322.02702504.014.3HoleBot.

Notes:

  1. Before BMS is installed
  2. 100 % SOC, 0 current
  3. 50 % SOC, 0 current
  4. E = Energy; P = Power
  5. A = full capacity; B = -0.5 Ah / cell; C = -1 Ah / cell
  6. Number of cells directly in parallel
  7. Number of cells in series in a block
  8. Total number of cells in a block
  9. May be limited by terminals' current handling
  10. Radsok = 6 mm post; M6 std. = standard M6 threaded hole; Hi cur. = High current handling, M6 treaded hole; Hole: plain hole
  11. Top = box type heat sink on top; Bott. = flush heat sink on bottom; Both = top and bottom heatsink

Then, please contact us and specify:

  • Elithion part number
    • 4BE = Battery block, Enerdel
    • 06 = 6 cells in series, 21 V
      08 = 8 cells in series, 32 V
      12 = 12 in series, 43 V
      16 = 16 in series, 63 V
    • 16 = 16.5 Ah energy
      17 = 17 Ah energy
      18 = 17.5 Ah energy
      30 = 30 Ah power
      31 = 31 Ah power
      32 = 32 Ah power
      33 = 33 Ah energy
      34 = 34 Ah energy
      35 = 35 Ah energy
    • B = Radsok terminal, both heat sinks
      H = M6 high current terminal, both heat sinks
      N = through hole terminal, flush bottom heat sink
      R = Radsok terminal, box top heat sink
      T = Standard M6 terminal, both heat sinks
  • Number of systems (if more than 1)
  • Number of battery blocks per system
  • Whether you would consider cells of less than full capacity range, if available, at a lower price
  • Your location

Notes

Elithion's standard warranty applies only to the portion of this product manufactured and installed by Elithion.
Neither Elithion nor Enerdel are able to offer a warranty on the cells, as the customer is in control of how these modules are used or possibly abused.

Enerdel and Moxie+ are trademarks of Enerdel corporation and are used here by permission.

 

In this page:
Specifications
Options
Block arrangement
Ordering
Notes
 
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