18650 battery cell is mainly composed of positive electrode, negative electrode, diaphragm, positive and negative collector, safety valve, overcurrent protection device, insulator and shell. There were many steel shells in the early stage, and aluminum shells are mainly used at present. The design of single overcurrent protection device is different from each manufacturer, and the price is also different according to different safety requirements.
一General safety devices mainly include PTC positive temperature coefficient resistance and fuse device. PTC, when there is excessive current, the resistance heats up, and the temperature accumulation promotes the rise of PTC resistance. When the temperature exceeds a national value, it increases sharply, which is equivalent to isolating the faulty cell from the overall circuit to avoid further thermal runaway. In principle, the fuse device is a fuse one by one. In case of excessive current, the fuse will fuse and the circuit will be disconnected. The difference between the two protection devices is that the former can be recovered, and the latter protection is one-time, -- once a fault occurs, the cell needs to be replaced. 18650 battery is widely used in various electronic products.
1.Global
（1）Lithium battery / mobile power un38 3 certification standard:SST/SG/AC 10/1 1/Rev.n-Section38- Amend IATA DGR
（2）Battery / mobile power MSDS preparation and certification standard:ISO 11014 Safety data sheet for chemical products
2.CB Member States
CB certification
Certification standard for portable secondary cell / battery / mobile power supply：IEC62133. IEC 60950
Lithium battery / mobile power certification standard: IEC 61960
Primary cell / battery certification standard: IEC 60086
Secondary cells or batteries containing alkaline or non acidic electrolyte: IEC 61951
Certification standard for safe transportation of primary and secondary lithium batteries: IEC 62281
3.U.S.A
（1）UL / ETL / ctuvus certification
Lithium battery cell certification standard: UL 1642
Household and commercial battery certification standards: UL 2054, UL 60950
Mobile power supply certification standards: UL 2056, UL 60950
Battery certification standard: UL 62133
(2) CTIA certification standard for batteries for communication products: IEEE 1725, IEEE 1625
4.China
（1）CQC certification and quality inspection report
Certification standard for portable secondary cell and battery: GB31241
Mobile power certification standard: GB / T 35590
Certification standard of primary battery (pack): GB / T 8897
Certification standard for lithium ion batteries and battery packs for mobile phones: GB / T18287
（2）BSMI certification standard for portable secondary cell and battery / mobile power supply:CNS 15364
5.Korea
Portable secondary lithium cell / battery / mobile power KC certification standard: K 62133
6. Japan
PSE certification standard for portable secondary lithium battery / battery / mobile power supply:J 62133
7. Russia
GOST-R (EAC) certification standard for lithium cell / battery / mobile power supply:
8.India
BIS certification
Lithium battery cell / cell pack certification standard: IS 16046
Mobile power supply certification standard: IS 13252 (Part 1)
9.Thailand
TISI certification
Certification standard for batteries and battery packs containing alkaline or other non acid electrolytes: TIS 2217-2548
Mobile power certification standard: TIS 2879-2560
Certification standard for built-in cell and battery of mobile power supply: TIS 2217 Tis 2879
10.European Union (EU)
（1）CE certification
Portable secondary cell and battery certification standards:EN / IEC 62133, en / IEC 60950
Portable secondary lithium battery and battery certification standard:EN / IEC 61960
Certification standard for secondary nickel cadmium and nickel hydrogen batteries: EN / IEC 61951
Certification standard for primary battery (pack) / primary battery: EN / IEC 60086
Lithium battery certification standard: EN / IEC 62281
（2）WEEE certification standard for cell / battery / mobile power supply：2012/19/EU
（3）ROHS certification standard for battery / mobile power supply:2011/65/5U
（4）Reach certification standard for battery / mobile power supply:SVHC181
11.Germany
Lithium battery / mobile power GS certification standard:EN 60950 & AfPS GS 2014:01PAK
12.Australia
RCM certification
Portable secondary battery certification standard：AS/NZS CISPR 32 AS/NZS 61000-6-3
Mobile power certification standard：AS/NZS CISPR 32 & EN/IEC62133
13.Brazil
（1）Mobile phone battery Anatel certification standard:ANATEL's Resolution 242
IEC 61960&IEC 62133&IEC 610004-2
（2）Inmetro certification standard for mobile power supply：IEC 62133
14. Mexico
Battery NOM certification standard:NOM-024-SCFI
15.Saudi Arabia
SASO certification standard for battery / mobile power supply: IEC corresponding standard
16. Malaysia
Primary cell / battery MC certification standard: IEC 60086
17.Vietnam
Lithium battery SDoC (MIC certification) certification standard:QCVN-101: 2016/BTTTT
