EV

Kokam Battery Module(KBM)

Liquid Cooled Battery

Kokam EV Battery Pack (XPAND)

NEW GENERATION EV BATTERY PACK

Kokam Battery System is designed for use in commercial truck, bus, tram, and heavy duty transportation. The system can be integrated in parallel and in series to create very high energy and high voltage systems. Furthermore, the “Variable Bulkhead” allows Kokam to customize the packs’ electrical and cooling interfaces without having to retool the entire systems.

EV Battery Type 1 : Xpand

  • Easy to customize high voltage, low voltage  and cooling interfaces to each application
  • All connections at front panel; rear access not needed for installation
  • New Kokam BMS permits very large strings and pack combinations (Up to 750V per string, and up to 24 strings in parallel)
  • Allows upgrades to connector styles, fuses, VTBs without tooling entire pack
  • Robust, highly serviceable BDU with integrated SCU; standalone MCU
  • Available with or without internal fuse
  • Highly robust tab-to-busbar joint survives the harshest vibration & shock environments while maintaining ultra-low DCIR
  • Direct cooling to cell face; 50-75% less mass than competing technology; maximizes volumetric efficiency
  • Enhanced cell separator eliminates the need for thermal barriers

Single Unit

Scalable Modular Design

TECHNICAL DATA 71P 7.1 kWh 114E 11.4 kWh
Cell Configuration 40NMC-2P24S 65 NMC - 2p24s
Specific Energy (Wh/kg) ≥92 ≥152
Energy Density (Wh/L) ≥116 ≥186
Capacity (Ah; Rated at C/2) 80 130
Voltage (Nominal; V) 88.8 87.8
Mass (kg) 77 75
Dimensions (L x W x H) 753mm x 303mm x 282mm
Certification ISO 12405, ISO 20653, ISO 16750, GMW 16390,
UNDOT 38.3, ECE R100 8E, IEC 62281, J2929, UN 38.3
Available from 1Q 2017 3Q 2017

EV Battery Pack Validation

Test Conditions Reference
Ingress Protection Mated: IP67, IPXXD, Unmated ISO 20653
Isolation   IEC 62133
Shock 50G, 6mS, 3 axis, 10 each ISO 12405
Vibration Random, 3 Axis, 21 hr/axis ISO 12405
Composite Heat & Humidity RH 93%, 25°- 65°C, 28 day ISO 16750
Thermal Shock 85°C to-40°C within 30 min ISO 12405
UNDOT UN T1, T2, T3, T4, T5 UN 38.3
Housing Load Knee 150kN/m²; Foot 356kN/m² GMW16390
Corrosion Salt mist cyclic, test Kb IEC 60068-2-52
DNV-GL SFC 2.4 sec 3.10
External Fuel Fire 130 sec over fuel fire ECE R100 8E
Drop Test 1.2m onto cement on corner IEC 62281
EMC CISPR25; ISO11452; ISO7637; ISO 10605  
Unbalanced Overcharge 1 cell @ 200% forced overcharge  
Forced Internal Coolant Leak Intentional internal coolant leak  
External Short Circuit, Fused 5mΩ, 100 mΩ J2929, UN 38.8
External Short Circuit, Unfused 5mΩ, 100 mΩ J2464

EV Battery Type 2

  • Automotive-certified [USABC, IEC, SAE, UN 38.3]
  • Energy density up to 150Wh/kg
  • High energy & high power density
  • Significant volume reduction due to fluid cooling
  • Longer calendar & cycle life
  • Flexible packaging & Freely scalable system design
  • Preserved from electrical and physical abuse
  • Long maintenance free periods for lower costs in cycle life
TECHNICAL DATA
Chemistry Lithium-ion NMC
Energy density 140 Wh/kg · 240 Wh/l
Energy 2.3 kWh
Weight 17.5 kg
Performance nom. 12 kW
Performance max. (10 s) 18 kW
Dimensions (W H L) 260 x 230 x 160 mm
Capacity 159 Ah / 106 Ah / 53 Ah
Voltage 14,8 V / 22,2 V / 44,4 V
Automotive-certified UN 38.3, IEC 60664, IEC 62660, SAND 2005-3123, UL 2580, ST/SG/AC.10/11/Rev.5 Absatz 38.3, ISO-12405-1:2011, Abschnitt 7.1&7.2, ISO-12405-1:2011, Abschnitt 7.3, ISO-12405-1:2011, Abschnitt 7.6, ISO 26262 / IEC 61508, DIN EN 60529, DIN EN 61373:2011–9, DIN EN 61373:2011-10, SAE J 2464-2009, ECE R100 -TRANS-WP29-2012-102e, ECE R100.02
TECHNICAL DATA Unit LITHIUM-ION NANO NMC
Energy kWh 28 30
Weight of battery kg 246 360
Energy Density Wh/kg •Wh/l 115 • 152 82 • 133
Discharge power cont./max kW / kW * 107 / 213 92 / 370
Charge power cont./max kW / kW * 57 / 85 92 / 153
Nominal voltage V 178 266 665
Dimensions
(Width x Height x Length)
mm³ 600x210x1594 750x216x154528
Automotive-certified DIN EN 61373, DIN EN 60529, DIN EN 50121-3-2,
DIN EN 45545-5, ECE R100, SAE J2464, IEC 60068-2-30

EV Battery Type 3

  • High discharging C-rate
  • Fast DC charging
  • High energy density up to 134Wh/kg
  • Compact and light design
  • Long life cycle
  • Industry standard voltages of 24 and 48V
  • Maximum durability under extreme conditions
TECHNICAL DATA A Type B Type C Type D Type
Nominal Voltage 25.9 V 51.8 V
Capacity 80 Ah 106 Ah 80 Ah 106Ah
Energy 2.07 kWh 2.74 kWh 4.14 kWh 5.49 kWh
Usuable Maximum Energy 1.86 kWh 2.47 kWh 3.73 kWh 4.94 kWh
Weight 18.6 kg 21 kg 37 kg 41 kg
Dimensions (W x H x L) 229 x 324 x 190 (mm) 229 x 324 x 372 (mm)
Battery Management System Inside

Application

Kokam provides Standardized Battery Modules Series of 216, 255, 460 depending on their size, configuration and capacity. Each battery module is used for different applications, and other customized models can be produced upon client’s request.

– ESS(Energy Storage System)

– Telecom UPS

– EV(Electric Vehicle)

– Tram

– Defense

– Aviation

– Marine

– Industrial

– Medical