Automotive Battery
World's No. 1 automobile battery supplier
The rechargeable battery for automobile is a mid- to large-sized lithium ion battery
used to provide power to an electric vehicle. Lithium ions move between the (+)/(-)
electrodes to produce electricity. Based on its cutting-edge technologies,
LG Chem has lead the global market by supplying batteries for electric vehicles to the
global automobile manufacturers.
Guides & Cautions
  • Product
  • Differentiation

Automobile Battery Differentiation

The No. 1 Company in the World

LG Chem provides batteries optimized for all eco-friendly vehicles from HEVs to PHEVs and EVs to global automobile manufacturers.

  • Micro

  • HEV

  • PHEV

  • EV

  • Hyundai/Kia Project(2009~)
    2009 - Avante and Forte Hybrids
    2011 - Sonata and K5 Hybrids
    2013 - Blue City Bus
    2014 - Grandeur and K7 Hybrids
    2015 - Gen 2 Sonata/K5 HEV and Sonata PHEV
    2016 - Ionic Micro HEV, PHEV, EV and
               Niro HEV, PHEV
    Hyundai/Kia Project(2009~)
  • GM Project(2010~)
    2010 - Chevrolet Volt and Opel Ampera
    2014 - Cadillac ELR
    2015 - Gen 2 Chevrolet Volt is launched
    2016 - 200 mail Bolt EV
    GM Project(2010~)
  • Renault Project(2012~)
    2012 - The Twizy and Zoe
    2013 - Fluence
    2016 - ZOE LREV (Long Range EV)
    Renault Project(2012~)
  • Ford Project(2012~)
    2012 - Focus
    Ford Project(2012~)
  • Volvo Project(2012~)
    2012 - V60
    2015 - S60L, XC90
    Volvo Project(2012~)

BMS with High Accuracy

LG Chem's battery management system (BMS) was developed by applying the ASIC chip, which is the epitome of the battery know-how that LG Chem has acquired, and the communication standards of automobile OEM companies. It demonstrates the accurate and reliable battery management technology that only LG Chem can offer.

Active battery management through internalization of specific cells
                - Highly-accurate algorithm developed using the proven data that LG Chem has accumulated - The epitome of LG Chem's accumulated expertise - Maximized battery specifications/performance

Pack structure optimized for xEV

Battery design and pack structure considering all aspects of the battery such as output, energy, cooling, size and price can be called the epitome of
LG Chem's technologies for efficient performance.

Uniform Temperature Control
Effective cooling system through
an active thermal maneagement model
Lighter Weight
  • Minimized cooling parts
  • Reduction of weight and volume
    with same cooling performance
Coolant Leak Free
Advanced design structure for isolation/prevention of leaks
Selection of Cooling Method
LG Chem's unique structure based on understanding of customer needs

Design flexibility that overcomes spatial restrictions

An automobile is built with tens of thousands of parts, and the positions and sizes of the battery may vary depending on the automobile manufactures.
Therefore, it is highly critical to have design flexibility.

Electrode - Change in size / Assembly : Change in capacity and tab direction - Cells are constructed by changing the size of the electrodes as well as the number/capacity of stacked pouch batteries. - Cell - Pack : Maximized capacity through changes in the cell design

Zero field issues

  • Product development
  • Processing capability
  • Production of
    high-quality battery
  • Find models with potential customer claim by year/cycle
    (estimation by cell).
  • Calculate the capacity retention rate by model.
  • Calculate the cell's capacity distribution rate according to customer claims.
  • Simulate the capacity distribution rate of a pack.

External Assessment

According to Navigant Research(former Pike Research),
LG Chem is an established leader of the market.

LG Chem has leading status prospects in 2020.
Source: Watch the Throne - How LG Chem Can Take Panasonic's EV Battery Crown
in 2020 by Lux research.

Guidelines and Cautions

Cautions and Prohibitions in Handling

Warning for using the lithium ion rechargeable battery. Mishandling of the battery may cause heat, fire and deterioration in performance. Be sure to observe the following.

  1. 1. Cautions for Use and Handling
    • When using the application equipped with the battery, refer to the user’s manual before usage.
    • Please read the specific charger manual before charging.
    • Charge time should not be longer than specified in the manual.
    • When the cell is not charged after long exposure to the charger, discontinue charging.
    • Battery must be charged at operating temperature range 0 ~ 50℃.
    • Battery must be discharged at operating temperature range -20 ~ 75℃. (Cell Surface Temperature)
    • Please check the positive (+) and negative (-) direction before packing.
    • When a lead plate or wire is connected to the cell for packing, check out insulation not to short-circuit.
    • Battery must be stored separately.
    • Battery must be stored in a dry area with low temperature for long-term storage.
    • Do not place the battery in direct sunlight or heat.
    • Do not use the battery in high static energy environment where the protection device can be damaged.
    • When rust or smell is detected on first use, please return the product to the seller immediately.
    • The battery must be away from children or pets
    • When cell life span shortens after long usage, please exchange to new cells.
    • Do insulate between the metal plate and cell or other components not to make a electrical short.
    • The cells should be handled and used in Pack/System manufacturing companies only.
    • The cells should be sold only to Battery Pack Maker(s) or System Integrator(s). The cells should not be handled by individual consumers and should not be sold to individual consumers by individual markets. (especially, the cells are strictly prohibited to be used for any kinds of E-cigarette devices)
    • Be sure to request and confirm the most current product specifications in advance which explain the specifications in detail, before the final stage of your design, purchasing or use for any application.
  2. 2. Prohibitions
    • Do not use different charger. Do not use cigarette jacks (in cars) for charging.
    • Do not charge with constant current more than maximum charge current.
    • Do not disassemble or reconstruct the battery.
    • Do not throw or cause impact.
    • Do not pierce a hole in the battery with sharp things. (such as nail, knife, pencil, drill)
    • Do not use with other batteries or cells.
    • Do not solder on battery directly.
    • Do not press the battery with overload in manufacturing process, especially ultrasonic welding.
    • Do not use old and new cells together for packing.
    • Do not expose the battery to high heat. (such as fire)
    • Do not put the battery into a microwave or high pressure container.
    • Do not use the battery reversed.
    • Do not connect positive(+) and negative(-) with conductive materials (such as metal, wire)
    • Do not allow the battery to be immerged in or wetted with water or sea-water.
    • Do not give immoderate heat and force to battery cell during a welding process of metal plates on it.
  3. 3. Caution for the battery and the pack

    Pack shall meet under condition to maintain battery safety and last long performance of the lithium rechargeable cells.

    1. 1) Installing the battery into the pack
      • The cell should be inspected visually before battery assembly into the pack.
      • Damaged cell should not be used. (damaged surface, can-distortion, electrolyte-smell)
      • Different Lot Number cells should not be packaged into the same pack.
      • Different types of cells, or same types but different cell maker’s should not be used together.
    2. 2) Design of battery pack
      • The battery pack should not be connected easily to any charger other than the dedicated charger.
      • The battery pack has function not to cause external short cut easily.
      • The design of battery pack and its structure should be reviewed physically, mechanically and electrically not to cause cell imbalance.
      • The battery pack for multiple cells should be designed to monitor the voltage of each bank.
    3. 3) Charge
      • Charging method is Constant Current-Constant Voltage (CC/CV).
      • Charging should be operating under maximum charge voltage and current which is specified in the product specification.
      • The battery should be charged under operating temperature specified in product specification.
    4. 4) Discharge
      • Discharging method is Constant Current (CC).
      • Discharging should be operating under maximum discharge current which is specified in the product specification.
      • Discharging should be done by cut off voltage which is specified in the product specification.
      • The battery should be discharged under operating temperature specified in product specification.
    5. 5) Protection Circuit
      • The protection circuit should be installed in the battery pack, charger.
      • Charger or pack should have voltage sensing system to control over charge or discharge in order to maintain the battery’s normal operating mode and protect cell imbalance.
      • Charger or pack should have warning system for over temperature, over voltage and over current
      • When battery packs for any applications are assembled with cells, following functions must be designed into the battery packs and/or in the charger or charging adapter. The detailed levels, values, conditions for each following functions should be referring to the contents specified in this Product Specification. If one or more than one function is/are to be omitted, the Packer Company (and/or System integration company) must be informing to LG Chem’s or to LG Chem’s sales Agent company. Without informing to LGC, LGC will not be liable for any field quality issues happened due to exclusion of following functions.
        1. (1) Over voltage protection circuit
        2. (2) Under voltage protection circuit
        3. (3) Over Charge current protection circuit
        4. (4) Over Discharge current protection circuit
        5. (5) Short circuit protection
        6. (6) Over Temperature protection circuit
        7. (7) 2nd over voltage protection
        8. (8) FET failure protection (in case FET is out of order)
        9. (9) Cell imbalance protection circuit (only for battery packs assembled with more than one cell)
        10. (10) Cell Voltage balancing function (only for battery packs assembled with more than one cell)
Exclusion of Liability

The warranty shall not cover defects caused by normal wear and tear, inadequate maintenance, handling, storage faulty repair, modification to the battery or pack by a third party other than LGC or LGC’s agent approved by LGC, failure to observe the product specification provided herein or improper use or installation, including but not limited to, the following:

    • Damage during transport or storage
    • Incorrect installation of battery into pack or maintenance
    • Use of battery or pack in inappropriate environment
    • Improper, inadequate, or incorrect charge, discharge or production circuit other than stipulated herein
    • Incorrect use or inappropriate use
    • Insufficient ventilation
    • Ignoring applicable safety warnings and instructions
    • Altering or attempted repairs by unauthorized personnel
    • In case of force majeure(ex. lightening, storm, flood, fire, earthquake, etc.)
    • There are no warranties-implied or express-other than those stipulated herein. LG Chem. shall not be liable for any consequential or indirect damages arising or in connection with the product specification, battery or pack.