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CQC certification of battery
Introduction to CQC certification in China

CQC mark certification is one of the voluntary product certification businesses carried out by China Quality Certification Center. By adding CQC mark, it shows that the products meet the relevant certification requirements of quality, safety, performance and electromagnetic compatibility. It aims to safeguard the interests of consumers, promote the improvement of product quality and enhance the international competitiveness of domestic enterprises. China Quality Certification Center (CQC) carries out CQC mark certification for lithium-ion batteries and battery packs in accordance with gb31241 safety requirements for lithium-ion batteries and battery packs for portable electronic products, and CQC certification for mobile power supplies in accordance with the national standard GB / T 35590-2017 general specification for mobile power supplies for information technology portable digital devices.

Importance of battery CQC certification

In view of the current national policies and a series of urgent requirements, whether you are a complete machine manufacturer or a large number of battery and mobile power manufacturers, distributors and traders, as long as your products are sold in the domestic market, you need to make CQC or gb31241 and GB / T 35590 reports. Batteries, mobile power supplies, etc. need to go to Taobao tmall jd.com, and also need to make the entrusted inspection reports of gb31241 and GB / T 35590. Now customers have more and more strict requirements for battery products and mobile power supply. CQC certification for battery products and mobile power supply is helpful to improve the brand popularity of certified products, enhance the market competitiveness of products and improve the market share.

Product scope of battery CQC certification

Examples of lithium ion batteries and battery packs for portable electronic products applicable to battery CQC certification gb31241 standard are as follows:

1. Portable office products: laptop, PDA, etc;

2. Mobile communication products: mobile phones, cordless phones, Bluetooth headsets, walkie talkies, etc;

3. Portable audio / video products: portable TV, portable DVD player, MP3 / MP4 player, camera, video camera, recording pen, etc;

4. Other portable products: electronic navigator, digital photo frame, game console, e-book, etc

The above list is only an example. Portable electronic products include but are not limited to the above products.

CQC certification standard of battery 产品 product

product

CQC standard


Portable secondary cell and battery

GB 31241


Portable secondary cell and battery

GB/T 35590


portable source

GB/T 8897


Lithium ion battery and battery pack for mobile phone

GB/T 18287


Power battery cell (lithium series)

GB/T 31484/5/6


Power battery system (lithium series)

GB/T 31467.1/2/3

The battery pack is subject to CQC certification gb31241 standard, and the following tests are required:

Capacity test, charging test, discharge test, overcharge test, overvoltage charging test, overcurrent charging test, reverse charging test, electrostatic discharge test, undervoltage discharge test, forced discharge test, external short circuit test, high altitude low voltage simulation test, temperature and humidity cycle test, die stress relief test, vibration test, impact test, drop test, extrusion test, heavy object impact test, thermal shock test, combustion test Overvoltage charging protection test, overcurrent charging protection test, undervoltage discharge protection test, short circuit protection test, overload protection test, over temperature protection test, high voltage resistance test, high temperature use test and flame retardant test.

Mobile power supply is subject to CQC certification and GB / t35590 standard, and the following tests are required:

Appearance and identification

Interface

Effective output capacity

Capacity retention

Cycle life

Conversion efficiency

Output voltage

Ripple and noise

Power adaptability under charging state

Overcharge protection

Over discharge protection

Short circuit protection

Overload protection

Misoperation

Electrical safety of the whole machine

Battery and battery pack safety

Flame retardant material

Stress relief

Restricted power supply

High temperature charge discharge

Steady damp-heat

Temperature cycle

Vibration

Collision

Free fall

Charge discharge temperature control (GB 31241-2017)

(GB 31241-2017)

Inspection items

Appearance and identification

Interface

Effective output capacity

Capacity retention

Cycle life

Conversion efficiency

Output voltage

Ripple and noise

Power adaptability under charging state

Overcharge protection

Over discharge protection

Over discharge protection

Overload protection

Misoperation

Electrical safety of the whole machine

Battery and battery pack safety

Flame retardant material

Stress relief

Restricted power supply

High temperature charge discharge

Steady damp-heat

Temperature cycle

Vibration

Collision

Free fall

Charge discharge temperature control

(GB 31241-2017)

CQC certification application process of battery and mobile power supply

1. Product certification application;

2. Data review;

3. Send samples;

4. Product type test;

5. Factory quality assurance capability inspection;

6. Evaluation of certification results;

7. Certificate approval;

8. Supervision after certification.

CQC certification, factory review and other precautions
Review content: factory quality assurance capability + product consistency inspection

1. Factory quality assurance capability review: according to CQC factory quality assurance capability requirements and factory inspection records

2. Product consistency inspection: check the consistency of the products applying for certification, focusing on the following contents:

(1) The identity (nameplate) of the certified product is consistent with that indicated in the type test report;

(2) The consistency between the structure of the certified product and the type test sample;

(3) One of the important parts / components of certified products and the list of important parts / components in the type test report Consistency;

(4) Conduct on-site inspection according to the table of routine inspection items and confirmed inspection items.

3. Method of initial Factory review the initial Factory review can be conducted separately or combined with the initial review or supervision review of CQC certification.

Initial Factory review time: generally, the initial Factory review shall be conducted after the type test is qualified.

Type test and Factory review can also be carried out at the same time as required. The review time of the factory is determined according to the number of units of the products applied for certification, with due consideration to the production scale of the factory, - generally, each processing site is 1-4 person days.

The specific review time is given in the special requirements for the implementation rules of protection product certification of corresponding products. The auditor's time on the road is calculated as half a working day, which is not within the number of people / days listed above.