- Battery
- 【Brief】：There are two kinds of lithium ion batteries: liquid lithium ion battery (LIB) and polymer lithium ion battery (PLB).
- 【Series】：Battery
- Description
- There are two kinds of lithium ion batteries: liquid lithium ion battery (LIB) and polymer lithium ion battery (PLB). Among them, the liquid lithium ion battery refers to Li + embedded compound is positive and negative of the two batteries. The cathode uses lithium compound cobalt lithium manganate and lithium manganese oxide, and negative electrode adopts lithium carbon interlayer compound. Because of its high working voltage, small size, light weight, high energy, no memory effect, no pollution, little spontaneous discharge and long cycle life, lithium ion batteries are the ideal energy carriers for the development of lithium ion batteries in twenty-first Century.
In 1992, Sony successfully developed Li ion batteries. Its practicability has greatly reduced the weight and volume of portable electronic devices such as mobile phones, laptops and so on. Use time is greatly extended. Because the lithium-ion battery does not contain heavy metal cadmium, compared with the nickel cadmium battery, the pollution of the environment is greatly reduced.
Lithium battery pollution or some, but relatively small.
There are usually two kinds of lithium batteries: cylindrical and square. The inside of the battery is spirally wound with a very fine and porous polyethylene film isolation material spaced between the anode and cathode. The cathode consists of a current collector consisting of cobalt lithium (or nickel cobalt, lithium manganate, lithium manganate, lithium iron phosphate, etc.) and aluminum foil. The negative electrode is composed of a current collector consisting of graphitized carbon material and copper foil. The battery is filled with an organic electrolyte solution. In addition, safety valves and PTC elements (partially cylindrical) are used to protect the battery from damage during abnormal conditions and short circuit output.
Single lithium battery voltage is 3.7V (lithium iron phosphate cathode for 3.2V), the battery capacity can not be infinite, therefore, often a single lithium battery for series and parallel processing, in order to meet the requirements of different occasions.
With the development of microelectronic technology in twentieth Century, the miniaturization equipment is increasing day by day, and the power supply is highly demanding. The lithium battery has entered a large-scale practical stage.
Lithium ion batteries have been widely used in portable devices such as portable computers, camcorders and mobile communications because of their unique advantages. Large capacity lithium ion battery development has started trial in electric cars, is expected to become one of the main power supply in twenty-first Century electric cars, and will be able to get on the side of application satellites, aerospace and storage. With the shortage of energy and the pressure of environmental protection in the world. Lithium is widely used in the electric vehicle industry, especially the lithium iron phosphate battery, but also to promote the development and application of lithium battery industry
Battery testing range
Primary battery
Common dry cells, alkaline manganese zinc batteries, lithium manganese batteries, zinc silver batteries, zinc air batteries, and lithium iodine batteries…
Two nickel cell
Ni Cd batteries, Ni MH batteries…
Mobile lithium battery
Li ion battery, lithium polymer battery…
All kinds of digital two batteries
Laptops, batteries, digital cameras, batteries, camcorders, batteries, various cylindrical batteries, wireless communications batteries, portable DVD batteries, CD and MP3 players, batteries, tablet computers, batteries, etc.…
Lead acid battery
Lead-acid batteries for automobiles, stationary lead-acid batteries, and small VRLA batteries…
Power two cell
Batteries for power vehicles, batteries for electric road vehicles, batteries for power tools, batteries for hybrids…
Scope / Region
Certification Project
product
Test standard
Global
UN38.3
lithium battery
S/SG/AC.10/11 联合国危险第38.3条款危险物品运输模拟测试
European Union
CB or IEC/EN Report
Portable two time electric core and battery
IEC/EN62133, IEC/EN60950
CB
Portable two time lithium battery and battery
IEC61960
Traction two batteries for electric vehicles
IEC61982，IEC62660
CE
Battery
EN55022,EN55024
North America
UL
Lithium battery core
UL1642
Household and commercial batteries
UL2054
Power battery
UL2580
Energy storage battery
UL1973
FCC
Battery
Part 15B
日本
PSE
Sealed miniature two cell
JIS C 8712
Lithium batteries and batteries for portable electronic devices
JIS C 8714
Russia
Gost
The lithium battery / battery
12.02-007,12-88
The Republic of Korea
KC
The lithium battery / battery
K62133
Thailand
TISI
The lithium battery / battery
TIS 2217-2548(2005)
Australia
C-Tick
Battery
CISPR22, CISPR24
China
CQC
Lithium batteries for cellular telephones
GB/T 18287,GB/T 18288
Battery test standard
Battery test item
Environmental testing
Low pressure
Temperature cycling
Thermal abuse
Electric Testing
Rated capacity Discharge performance
Over discharge Over charge
Forced discharge High-rate charging
External short circuit Endurance
Charge relenition and recovery Internal resistance
Environmental testing
Vibration
Mechanical shock
Free fall
Crush
Impact
Electrostatic discharge
EMC testing
Electrochemical analysis
Battery materials analysis
