A battery is a device that uses chemical reactions to provide power for electrical devices. It consists of positive and negative electrodes and uses chemical reactions at the electrodes to generate electricity. The main types of batteries are lead-acid batteries, commonly used in vehicles, and lithium-ion batteries, which power many portable electronic devices. Batteries can explode or leak if mishandled, as they contain corrosive and toxic chemicals like lead and mercury. Proper safety procedures must be followed when working with batteries to avoid hazards.

2. What Battery is?
A Battery is a device consisting of one or more electrode materials, which is
used as a source of power to run electrical devices such as Mobile phones,
Flashlight etc.

3. Anode
 Positive terminal is
called CATHODE
 Negative terminal is
called ANODE
Negative terminal is the source of
electrons that flows out and deliver
energy/current/power to external
devices.

4. Types of Batteries

5. Lead Acid Battery
For Vehicles, Power
Back-Up, Inverter
Batteries etc.
Lithium-ion Battery
For portable
devices like Mobile
Phones,
Flashlights, Toys
etc.
Types of Batteries

6. Hazards from Batteries

7. Explosion
01
Hazards from Batteries
Leakage
02
Ingestion
04
Toxic
Material
03

8. Reasons of Explosion of Battery

9. Reasons of Explosion of Battery
Hitting Battery with Pressure
Trying to recharge a non-rechargeable battery
Short-Circuit
Overcharging
Leakage
Disposing off by Burning

10. What happens when we hit a Battery?

11. What happens when we hit a Battery?
When we hit a battery, an explosive gas mixture of hydrogen and oxygen is produced at a
faster rate which builds-up pressure and heat in the battery at an excessive rate that can
escape within the battery.
And.............. BOOM

12. Why Explosion or Leakage is Dangerous?
Chemicals in the Batteries are corrosive or poisonous or both.
Like Lead, Mercury etc.

14. SAFETY CHECK POINTS
 Do not stick or put any material on the desk of screw machine, make sure no screw or foreign
material in the jig and track, need to clean the desk once every two hours and record in the
tracking sheet of screw machine.
 Need to hit 3 times gently on the desk with the battery housing downward, check the screw or
other foreign material with the finger point on battery housing.
 Need to close the jig cover when screw, must mark the sequence of the screw as the document
and screw as it, when adjust or repair the screw machine, need to cover the battery with empty
tray or cover.
 When install the battery cover, need to wipe the battery and battery cover inside surface for
one time, make sure no screw or other foreign material.The pending semi-device do not under
the hand, avoid the foreign material fall off on the battery (if the battery is false battery can
follow the corresponding document).

15.  Make sure no screw or other metal material on the dest at each station, must clean the desk before shift
start, tea time and end of shift.
 Must tranmit the device with the two-lattice tray, do not put the semi device under the desk at screw
station or interfacing the screw station, need to put the buffer device into the special tray and cover
with empty tray, do not stack the battery, must put into the special tray.
 Need to confirm no screw or other foreign material in the tray or container.
 All parts, metal, tweezers and other sharp or hard tool must put into the special box at battery
regarding staions or battery exposed stations when them free, do not use metal tweezer at battery
exposed stations.
 Make sure no sharp and hard tool or material at battery installation station, battery cover installation
station and battery storing area (include fresh or secondary battery).
 There must be explosion-proof box and explosion-proof glove at battery installation station, need to
train the operator how to use, make sure no foreign material in explosion-proof box.

16.  All the battery installation station or disassemble station must be changeless operator, before change
the operator must give the special training to him and record in this sheet.
 Make sure the distance between tray with semi device and screws box is larger than 8 cm to avoid
screw fall into.
 The operator do not keep long finger nail at battery regarding station (not longer than finger belly),
need to use the flat single tweezer with clean cloth when clean the test point dirt, do not use the sharp
tweezer.
 Do not hit the battery on the desk when scan its' bar code.
 Must install the battery as soon as its' vinyl is removed, do not keep the battery without vinyl on the
desk or tray.
 Need to inspect the battery appearance after disassemble it, do not continue to disassemble if battery
liquid leakage, battery broken, battery blowup happen. Sharp plastic tweezers, sharp metal tweezers
are forbidden at functional repair station, only flat plastic tweezers is allowed.

17.  Do not use knife to open the battery carton box, need to use the pen to open it. When carry the battery,
do not with some hard or sharp tool on hand.
PPE Requirements
Chemical Safe Apron
Rubber Gloves
Face Mask
Eye Goggles
Rubber Boots