Cell

lithium ion polymer cells

Superior Lithium Polymer Battery (SLPB)

Kokam Li-ion / Polymer Cell

The Best Partner for your Battery Solution
World Highest Performance Li-ion / Polymer Battery

More Than 16 Years of Battery Technology Experience

Pioneer of Lithium Polymer Battery Technology

Starting from 1998, Kokam has developed and manufactured more than 80 different kinds of Superior Lithium Polymer Battery (SLPB) beginning in 1998. The Superior Lithium Polymer Battery (SLPB) has been proven to deliver superior performance and quality to our customers. Due to the patented cell design, the energy density of the High Energy type SLPB’s is extremely high, while the high power type SLPB’s.

The superior characteristics of Kokam’s Lithium polymer battery are built using Kokam’s distinct manufacturing technology. Marked by the patented Z-folding manufacturing technique and using the most advanced form of Lithium Polymer and thin film laminations, Kokam’s manufacturing technology not only results in a use of and time-efficient manufacturing process, but also enhances the overall performance and quality of the SLPB. During more than 16 years of Lithium polymer battery manufacturing experience, Kokam has brought a variety of cells to the market and range in size from 3.2Ah to 240 Ah.

Advantages of Kokam Lithium Polymer Battery

“Superior Performance, Proven Quality, Greater Reliability, Increased Safety”

High Power Performance
High Energy Density (130 ~ 265 Wh/kg)
High Gravimetric and Volumetric Power Density
Excellent Power-to-Energy Balance
Longer Cycle and Calendar Life
Low Impedance and Low Heat Generation
High Charge / Discharge Energy Efficiency
Light Weight
No Memory Effect
Low Self-Discharge Rates

Features

Kokam set about to solve the limitations associated with conventional lithium-ion technologies, including cycle and calendar life, safety, recharge time, power delivery, and ability to operate in extreme temperatures.The performance of Kokam Lithium polymer battery surpasses the other existing batteries in the market today.

- Heat Dissipation

Below shows the additional surface area and much shorter distance that heat must travel to exit the Kokam pouch cells, as compared to a similar capacity cylindrical cell.

The battery cell is the basis of an Energy Storage System. A key factor in maintaining optimum performance is to keep the cell temperature within the designed range. The very large surface area and thin cross-section of Kokam’s polymerized aluminum pouch construction allows much more efficient thermal transfer than cylindrical or thick, plastic coated prismatic cells do.

The heat dissipation is also correlated with safety. Kokam’s approach to safety is very serious and has therefore received various certifications such as CE, UL, UN, S-Mark, SBA and KBIA. Kokam’s effort to achieve reliability and safety has been recognized through its certifications in various defense qualification tests.

- Low Internal Resistance

The Kokam Lithium Polymer battery manufacturing technology’s exceptional cycle life and high discharge rate capability are attributable to unique cell construction techniques, such as the Z-fold design, illustrated in above. The cell’s parallel pairs of electrodes offer unmatched low internal resistance, which results in less energy loss in high temperature heat as the cell charges and discharges.

- Kokam UHP: 0.3~0.35mΩ
50% lower Internal Resistance compared to other battery manufacturers
– Z-fold stacking and special coating method significantly reduces internal  resistance  and increases efficiency, power, and cycle life.

- Increased cycle life

- Heat dissipation

        •    UHP Cell creates less heat than standard NMC cells, allowing for more vigorous operations

- High Efficiency

Due to the low internal resistance and optimal design for minimizing the loss, Kokam’s Lithium polymer battery has achieved extremely high efficiency rates (>96.5%) @ 0.5C-rate discharge/charge). The high efficiency of Kokam’s cells reduces the total operating cost in a battery system.

        •    Round Trip Efficiency of NMC cells

Certifications

UL1642 for all types of cells

UL-Japan/S-mark for all types of cells

CE

Kokam Cell Types

Over 80 Lithium Polymer Batteries have been manufactured and integrated into various applications including ESS, Defense, Marine, Aviation, Telecom, EV, Industrials. Upon 25 years of accumulated field experience, Kokam have supplied aggregate of over 550MWh battery system around the world. The Kokam cell has been recognized as outstanding technology – reliable and well integrated.

Ultra High Energy NMC (Nickel Manganese Cobalt)

Advantages

- High energy density (~ 265Wh/kg):
Up to 2.8MWh of batteries can be stored in a 40ft container

- More than 96% of high efficiency at 0.5C

- Competitive Price: The NMC cells have a comparative advantage in terms of price,
considering its superior performance, reliability and safety features.

Lithium titanate (LTO)

Advantages

- Wide Range of Operation: -30 ~ 60degC.

- High specific power: 4C-rate continuous and 8 C-rate peak charge & discharge operation

- High round trip efficiency (RTE): >95%.

- Long cycle life: 20,000 cycles @ 80% DoD, 1C charge & discharge operating conditions.

- Extremely Safe: A thermal runaway event is significantly less likely to occur in LTO cells. LTO cells can also be re-operated after an event of an over-discharge, unlike conventional graphite based Li-Ion cells. This feature enables the user to operate the battery cells under extreme environmental and operational conditions.

- The advantages of the LTO cells: Originates from the Anode side of the battery cell. Whereas the Anode side of ordinary Li-Ion cells is made up of Graphite, the Anode side of the LTO cell is composed of LTO.

Cell specification 65Ah Remarks
Capacity (Ah) 65 @ 0.2C
Nominal Voltage (V) 1.5 ~2.8  
Cycle Life 1C/1C Up to 20,000 cycles 80% DOD
Max Continuous
Charge/Discharge
4C/8C  

Technology Specifications

Type Model Capacity
(Ah)
Dimension(mm) AC-
IR
(mΩ)
Weight
(kg)
Discharge Rate Energy
Density
(Wh/kg)
C-rate(C)
W L T Continuous Pulse
20~50Ah SLPB60216216 25 226 227 6.3 1.20 0.600 5 8 154
SLPB98188216P 30 198 220 9.9 1.00 0.870 20 30 128
SLPB78216216H 31 226 227 7.8 0.90 0.720 8 15 158
SLPB100216216H 40 226 227 10.0 0.80 0.990 8 15 160
SLPB120216216HR2 46 226 227 12.5 0.80 1.270 12 15 135
50~100Ah SLPB120216216 53 226 227 12.0 0.90 1.160 5 8 169
SLPB110255255H 63 268 265 11.0 0.60 1.520 8 15 153
SLPB130255255N_X60 60 266 263 12.8 0.40 1.760 6 10 76
SLPB60460330H 70 462 327 5.7 0.60 1.740 5 6 149
SLPB120255255 75 268 265 11.6 0.60 1.580 3 5 175
SLPB125255255H 75 268 265 13.0 0.55 1.780 8 15 156
SLPB130255255P 75 268 265 13.5 0.40 1.810 4 8 153
SLPB70460330H 80 462 327 6.3 0.60 1.920 5 5 154
SLPB125255255 87 268 265 13.0 0.65 1.780 2 3 181
100Ah~ SLPB70460330 100 462 327 7.0 0.65 2.070 2 3 179
SLPB80460330H 100 462 327 7.8 0.55 2.380 5 6 155
SLPB120460330 150 462 327 10.5 0.50 3.210 2 3 173
SLPB140460330 200 462 327 13.9 0.50 4.180 2 3 177
SLPB160460330H 200 462 327 14.8 0.50 4.580 2 3 162
SLPB160460330 240 462 327 15.8 0.50 4.780 2 3 186
Type Model Capacity
(Ah)
Dimension(mm) AC-IR
(mΩ
Weight
(kg)
Discharge Rate Energy
Density
(Wh/kg)
C-rate (C)
W L T Max Peak
Ultra High Energy NMC SLPB065070180 12 80 181 6.3 2.8 0.17 2 4 257
SLPB080085270 27 95 272 7.6 1.6 0.38 2 4 260