battery INFINITI Q50 HYBRID 2014 Dismantling Guide

Foreword
This manual describes dismantling operations andimportant safetyrelated warnings and cautions for this
vehicle.
This vehicle is equipped with a high voltage Lithium-ion (Li-ion) battery pack. Failure to follow
recommended practices during dismantling will cause death or serious personal injury.
Please read this manual in advance of any dismantling activities in order to understand the features of this
vehicle and to help you deal with dismantling operations involving this vehicle. Follow the procedures in
order to help assure a safe and successful dismantling operation.
This manual is periodically updated. If you are not viewing this manual on the Infiniti web site, we urge you to
go to
www.infinitiusa.comorwww.infiniti-techinfo.comto make sure you have the most recent version of this
manual.
INFINITI EMERGENCY CONTACT INFORMATION
• 1-800-662-6200 (US) or 1-800-361-4792 (Canada)
• Hours of operation are 8am-5pm (Monday-Friday) Eastern, Central and Pacific time zones
IMPORTANT INFORMATION ABOUT THIS MANUAL
You may see various symbols in this manual. They have the following meanings:
This symbol is used to inform you of an operation which will result in death or serious
personal injury if instructions are not followed.
Example: Touching high voltage components without using the appropriate protective
equipment will result in electrocution. PPE must always be worn when touching or
working on high voltage components.
This symbol is used to inform you of an operation which may cause death or serious
personal injury if instructions are not followed.
This symbol is used to inform you of an operation which may cause personal injury or
component damage if instructions are not followed.
Please note that there may be differences between this manual and the vehicle specification due to specification changes. DG–2

Table of Contents
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . DG–2
INFINITI EMERGENCY CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–2
IMPORTANT INFORMATION ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–2
1. ABOUT THE Q50 HYBRID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–5
1-1 Q50 HYBRID IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–6
1-1.1. EXTERIOR AND ENGINE COMPARTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–6
1-1.2. INTERIOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–7
1-2 VEHICLE IDENTIFICATION NUMBER (VIN) LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–8
1-3 WARNING AND INDICATOR LAMP INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–9
2. BASIC HIGH VOLTAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–10
2-1 BATTERY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–10
2-1.1. 12V BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–10
2-1.2. LI-ION BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–10
2-2 HIGH VOLTAGE-RELATED AND 12V-RELATED COMPONENT LOCATIONS AND DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–11
2-3 LI-ION BATTERY PACK SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–12
2-4 HIGH VOLTAGE SAFETY MEASURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–13 2-4.1. WARNING LABEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–13
2-5 HIGH VOLTAGE SAFETY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–14
2-6 HIGH VOLTAGE CIRCUIT SHUT-OFF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–15
2-7 PREVENTING ELECTRICAL SHOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–15
3. PREPARATION FOR DISMANTLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–16
3-1 PREPARATION ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–17
3-2 PERSONAL PROTECTIVE EQUIPMENT (PPE) AND INSULATED TOOLS . . . . . . . . . . . . . DG–18 3-2.1. PERSONAL PROTECTIVE EQUIPMENT (PPE) PROTECTIVE WEAR CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–18
3-2.2. DAILY INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–18
3-2.3. INSULATED TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–18
3-2.4. DISCHARGE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–18
3-3 HOW TO HANDLE A DAMAGED VEHICLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–20 3-3.1. HIGH VOLTAGE SYSTEM SHUT-DOWN PROCEDURE . . . . . . . . . . . . . . . . . . . . . DG–20
3-3.2. CUTTING THE VEHICLE BODY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–31
3-3.3. WATER SUBMERSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–34
3-3.4. VEHICLE FIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–34
3-3.5. LI-ION BATTERY DAMAGE AND FLUID LEAKS . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–35
DG–3

4. JUMP STARTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . DG–36
4-1 JUMP STARTING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–37
4-2 SHIFT SELECTOR LEVER LOCK RELEASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–38
5. STORING THE VEHICLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–39
6. DISMANTLING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–40
6-1 PRECAUTIONS FOR HANDLING HIGH VOLTAGE LITHIUM-ION (LI-ION) BATTERY . . . . DG–40
6-2 LITHIUM-ION (LI-ION) BATTERY PACK REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–42 6-2.1. EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–42
6-2.2. REMOVAL PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–45
6-3 LI-ION BATTERY RECYCLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DG–53
DG–4

1. About the Q50 HYBRID
This hybrid electric vehicle (HEV) uses two types of batteries. One is a 12V battery that is the same as the
battery in vehicles powered by internal combustion engines. The 12V battery is located in the rear of the
vehicle with battery cable access through the trunk area. The other is the Lithium-ion (Li-ion) battery (high
voltage) for the traction motor which propels the vehicle. The Li-ion battery is located behind the rear
seat back with service plug access through the trunk area.
The high voltage Li-ion battery is recharged with an on-board DC/DC converter and generator powered by
the engine. Additionally, the vehicle system can recharge the Li-ion battery by converting driving force
into electricity while the vehicle is decelerating or being driven downhill. This is called regenerative charging.DG–5

2. Basic High Voltage Information
2-1 Battery Information
The Q50 HYBRID utilizes two batteries in order to supply both high and low voltage.
2-1.1 12V Battery• The Q50 HYBRID contains a conventional lead-acid12V battery.
• The 12V battery is located in the trunk, on the left side, concealed by a trim cover.
• The 12V battery is charged by the Li-ion battery through the DC/DC converter.
2-1.2 Li-ion Battery • The Q50 HYBRID contains a Li-ion high voltage battery.
• The high voltage battery is mounted in the trunk areabehind the rear seat, enclosed in a metal case and
concealed by trim cover.
• The high voltage battery stores energy at approximately 346 - 400 volts DC.
• A vent hose is provided to exhaust gasses outside the vehicle if necessary.
• An air vent (A) is located on the rear left hand lower C-pillar trim for battery cooling.
The high voltage battery supplies power to the following: • High voltage harnesses
• DC/DC converter
• Traction motor inverter
• Traction motor
• Electric air conditioner compressor
A
AAYIA0180ZZ
AAYIA0183ZZ
A
AAYIA0184ZZ
DG–10

No. Component Location Description Traction Motor Inverter
Engine compartment
(rear passengerside)Converts the DC power stored in the Li-ion
battery to three-phase AC power and controls
motor torque (revolution) by regulating the
motor current. The inverter has a built in high
voltage capacitor.
Traction Motor Built-into the
transmission Converts three-phase alternating current (AC)
power to drive power (torque) which propels
the vehicle.
Lithium-ion (Li-ion)Battery
Trunk area
(behind rear seatback) The Li-ion battery stores and outputs DC
power (Maximum voltage 400V) needed to
propel the vehicle.
DC/DC Converter Trunk area (mounted to top of
Li-ion battery) The DC/DC converter reduces the voltage of
the Li-ion battery to provide power to the 12V
battery in order to operate the vehicle’s electric
components (headlights, audio system, etc.) .
Service Plug Trunk area
(below parcel shelf;
behind access door
in trim panel) This is used to disable the high voltage system.
12V Battery Trunk area (left side
behind trim panel) A lead-acid battery that supplies power to the
low voltage devices.
High VoltageHarnesses Trunk area
(on Li-ion battery) ,
under floor pan,
engine compartment Orange-colored power cables carry high DC
voltage between each of the high voltagecomponents.
Electric Air Condi-
tioner Compressor
Engine compartment
(front driver side)Air conditioner compressor
2-3 Li-ion Battery Pack Specifications
Li-ion Battery Specifications
Li-ion battery voltage 346V (400V max.)
Number of Li-ion battery modules in the pack 12 modules (96 cells)
Li-ion battery module voltage 28.8V each
Li-ion battery dimensions
29.63 x 17.81 x 14.85 in. (752.5 x 452.4 x 377.1 mm)
Li-ion battery weight 108.05 lbs (49 kg)
DG–12

2-4 High Voltage Safety Measures
Circuit insulation The high voltage positive (+) and negative (-) circuits are insulatedfrom the metal chassis.
Reducing the risk of electrocution The high voltage components and harnesses have insulated cases or orange-colored coverings which provide insulation and easy identification.
The high voltage battery case is electrically connected to the vehicle ground.
This connection helps protect the vehicle occupants and vehicle dismantlers
from high voltage electrical shock.
Identification The high voltage components are labeled “WARNING” similar to label shown below. All high voltage harnesses are coated in orange.
2-4.1 Warning Label
AAYIA0010ZZ
DG–13

2-5 High Voltage Safety System
The high voltage safety system is intended to help keep vehicle occupants and emergency responders safe
from high voltage electricity.• A high voltage fuse provides short circuit protection inside the high voltage battery.
• The high voltage safety system is insulated from the metal chassis.
• Positive and negative high voltage power cables are connected to the high voltage battery and arecontrolled by normally open system main relays (SMR1 and SMR2) . When the vehicle is shut off,
the relays stop electrical flow from leaving the high voltage battery. However, it can take
approximately (10) minutes for the high voltage capacitor to fully discharge.
• The high voltage system and high voltage capacitor may remain powered for up to
approximately 10 minutes after the vehicle is shut off. Personal Protective Equipment
(PPE) must always be worn when touching or working on high voltage components
to avoid risk of electrical shock and severe personal injury or death.
• The high voltage battery retains high voltage at all times. PPE must always be worn when touching or working on high voltage components to avoid risk of electrical shock and
severe personal injury or death.
• A ground fault monitor continuously monitors for high voltage leakage to the metal chassis while the vehicle is running. If a malfunction is detected, the HPCM (hybrid powertrain control module) will
illuminate the hybrid system warning lamp
in the instrument cluster.
• The high voltage battery relays (SMR1 and SMR2) will automatically open to stop the electrical flow in a frontal collision that is sufficient enough to activate the supplemental restraint system (SRS) .
AAYIA0001GB
DG–14

2-6 High Voltage Circuit Shut-Off System
This vehicle is equipped with a system to shut off the current from the Li-ion battery by the following methods:
Service plug Positioned in the center area of the Li-ion battery, this plug shuts off theoutput of high voltage when manually removed.
System main relays
(located in the high
voltage battery) Controlled by the ignition switch, these relays are powered by the
12V system and shut off high voltage from the Li-ion battery.
Emergency shut-offsystem In the case of a collision (front and side collisions in which the air bags are
deployed, certain rear collisions) or certain system malfunctions this system
is designed to shut off the high voltage from the Li-ion battery.
2-7 Preventing Electrical Shock 1. If it is necessary to touch any of the high voltage harnesses or components, always wearappropriate Personal Protective Equipment (PPE) (refer to
3-1 Preparation Items (DG–17)) .
Shut off the high voltage system by referring to
3-3.1 High Voltage System Shut-Down
Procedure (DG–20)
.
2. To avoid the risk of electrocution, NEVER touch the inside of the Li-ion battery with bare hands after shutting off the high voltage system. The Li-ion battery maintains charge even though the
high voltage system is shut down. PPE must always be worn when touching or working on high
voltage components.
3. Cover damaged high voltage components with insulated tape.
DG–15

3. Preparation for Dismantling
•Failure to properly shut down the high voltage electrical system before the
Dismantling Procedures are performed will result in serious injury or death from
electrical shock. To prevent serious injury or death, NEVER touch high voltage
harnesses or components without always wearing appropriate Personal Protective
Equipment (PPE) . PPE must always be worn when touching or working on high
voltage components.
•
If it is necessary to touch any of the high voltage harnesses or components you
must always wear appropriate PPE to avoid electrical shock. PPE must always be worn
when touching or working on high voltage components. Shut down the high voltage
system by following the steps outlined in
3-3.1 High Voltage System Shut-Down
Procedure. (DG–20)
Wait approximately ten (10) minutes for complete discharge of the
high voltage capacitor after the high voltage system has been shut down.
• NEVER assume the Q50 HYBRID is shut OFF simply because it is quiet.
• If it becomes necessary for the dismantler to leave the vehicle, place a “DANGER” sign (for example, refer to
5. Storing the Vehicle (DG–39)) on the vehicle to alert other people
that the vehicle contains a high voltage battery.
• If the READY
indicator is ON the high voltage system is active.
• If possible, be sure to check the READY
indicator on the instrument cluster and
verify that the READY
indicator is OFF and the high voltage system is stopped.
DG–16