Various solutions offered by our technologies

STEP 1 STEP 2 STEP 3 STEP 4
Customer needs Capacity Voltage High voltage Large capacity/ maintainability
Our technologies Active cell balance
(ACB)
Active module balance
(AMB)
Intelligent hot plug switch
(IHS)
Effects of our technologies - Correction of voltage and capacity variations
- System loss reduction
- Correction of voltage and capacity variations
- System loss reduction
- Full utilization of parallel pack power
- Redundancy improvement by online insertion and removal (OIR)
Solutions Cells connected in parallel
→ Small module (S-module)
S-modules connected in series
→ Large-module (L-module)
L-modules connected in series
→ Pack
Packs connected in parallel
STEP 1
Customer needsCapacity
SolutionsCells connected in parallel → Small module (S-module)
STEP 2
Customer needsVoltage
Our technologiesActive cell balance (ACB)
Effects of our technologies- Correction of voltage and capacity variations
- System loss reduction
SolutionsS-modules connected in series
→ Large-module (L-module)
STEP 3
Customer needsHigh voltage
Our technologiesActive module balance (AMB)
Effects of our technologies- Correction of voltage and capacity variations
- System loss reduction
SolutionsL-modules connected in series
→ Pack
STEP 4
Customer needsLarge capacity/ maintainability
Our technologiesIntelligent hot plug switch (IHS)
Effects of our technologies- Full utilization of parallel pack power
- Redundancy improvement by online insertion and removal (OIR)
SolutionsPacks connected in parallel

Technology I: Active cell balance (ACB)

ACB Features


As methods for regulating the equalization of series batteries,
there are the passive balancing methods using conventional technology
and active balancing methods using new technology.
ACB enables management of the battery system (battery cells connected in multiple series)
as if it were a single battery.
As a result, the following effects can be expected.

1) The safety of the battery system improves.
2) The burden on specific battery cells is reduced, prolonging their lives.
3) The range of EV vehicles can be extended.


Technology II: Active module balance (AMB)

AMB is a technology to compensate for the slight differences in voltage and capacity
between the modules in series batteries.
It enables the transfer of power between any module, and the balancing of voltage or electric energy.
It also enables the difference in each module’s total voltage to be compensated for.
(This operation can be performed between modules with a different number of series.)

Technology III: Intelligent hot plug switch (IHS)

IHS manages the voltage of each battery pack connected in parallel.
It connects only within the usable voltage ranges for each battery pack, and turns off outside those ranges.
This makes it possible to fully utilize the capability of all parallel battery packs.