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• Also battery optimizer is able to improve for the big shrinkage on winter endurance mileage. Therefore, DN had performance results 10.7% in city driving and 19.8% in high-speed driving as below table 1, also we are making every effort to develop this technology steadily and apply it to electric vehicle batteries.
• We has already begun development and research on automobile fuel reduction technology in 2009.
  In addition, in the first half of 2012, the technology development for electric vehicle battery reduction devices began in earnest, and the technology was completed in the second half of 2020.
  
  The use of batteries by applying next-generation technology that improves performance by improving the efficiency of electric vehicle batteries, which is the core of the rapidly commercialized and expanding electric vehicle market, as the use of eco-friendly energy has been recently promoted and regulatory measures are being implemented worldwide. By increasing the lifespan of battery of the existing 10% to 15%, we intend to play a part in improving the quality of life for all of us by making economic benefits for users and eco-friendly for the earth we live in.

FEATURE

Table 1. The test result of Battery Optimizer

• Test result by 98eFO
  Test classification	Before installation	After installation	%Difference
  City driving fuel economy	10.20km/ℓ	11.30km/ℓ	10.78%
  High-speed driving fuel efficiency	15.60km/ℓ	18.70km/ℓ	19.87%

• Battery optimizer Technology

  1) Vehicle to be tested (Sample:98eFO fuel saver)

  Car model	: KIA the New K5
  Production year	: 2014 year
  distance driven	: 19,056km
  Engine (displacement)	: 1999ccMPI
  How to shift	: Automatic transmission
  Power (SAE)	: 165ps/6500rpm ,20.5kg∙m/4800rpm

  2) Test contents (unit: KPL) Fuel economy test before and after installation samples for high-speed driving and city driving according to FTP75 regulations

In a lithium-ion battery, the positive electrode is made of lithium, cobalt, manganese, etc., and the negative electrode is made of graphite. The separator is made by dissolving 'polyethylene', a type of plastic, and the electrolyte solution by dissolving lithium salt in an oil-like component. The separation membrance prevents current from passing through normally, and plays a role of selectively passing only lithium ions when current flows.

The initial state of the lithium-ion battery is 'completely discharged'. Therefore, it can be used only by charging it first. When electricity is applied to the battery, lithium in the positive electrode is decomposed into’ lithium ions (Li+)' and 'electrons (e-)'. 'Lithium ions' move along the electrolyte through the separator to the cathode, and 'electrons' are charged while moving along the wires to the cathode.

Energy generated through discharge uses the force of lithium ions and electrons to move back to the positive electrode. Lithium ions move along the electrolyte back to the anode through the separator, and electrons move along the wires to the anode, where the flow generated when electrons move is called current which is wave.

Existing lithium-ion batteries combine dozens of lithium-ion cells to be used in mobile phones, but batteries used in automobiles are modularized by combining hundreds of cells, and dozens of modules are combined into a pack. The only difference is that Tesla is cylindrical and LG Chem is square.

The biggest concern: Two ways to increase battery's lifespan and lower cost
• First way: Other devices
  The key to technology development is how to differentiate the components that go into the anode and the cathode and make the component ratio different. But basically, cobalt is expensive, so a replacement metal is needed. In addition, in order to solve the shortcomings, the composition of the anode and the electrolyte are currently being changed, but fundamentally, lithium-ion batteries have a short lifespan and are sensitive to heat, so there is a risk of explosion. Second way: Battery Optimizer
  Electrons are charged while moving to the cathode along the wire, and discharged while moving to the anode along the wire. Changing the direction of movement of electrons is the core of technology development.
  The force of lithium ions and electrons to move back to the positive electrode through discharge, that is, electrons that are one axis of energy generation, and the movement direction of the electrons, that is, by switching from the centrifugal direction to the centripetal direction, therefore reducing the battery consumption and extending the lifespan, and increasing the lifespan, causing the risk of explosion Reduce occurrence