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new energy battery testing - compliance testing of new energy power batteries

new energy vehicles are becoming more and more popular in china. in the context of a better macro environment, the development of new energy vehicles is not smooth sailing, but faces many problems. in terms of market operation, the target market is dominated by the government, and companies are lacking in the needs and coping strategies of target users. at the same time, the current domestic vehicle environment puts forward a large number of demands for public charging facilities. in terms of industrial status, the lack of scientific and technological innovation ability, the shortage of industrial development funds, the lack of consumers' understanding of electric vehicles, the serious lack of related supporting facilities and other phenomena restrict the development of new energy vehicles.

at the same time, in terms of the technical capability of the vehicle itself, there are also many areas to be improved, such as the limited maximum speed due to the insufficient power motor power, the insufficient thermal management integration ability of the vehicle and the power battery system, and the low energy density of the power battery system (especially the insufficient available energy in the low-temperature environment). among them, the lack of power battery system performance is one of the key difficulties that hinder the large-scale market of pure electric vehicles.

the requirements for power battery testing and evaluation, including but not limited to battery safety performance, reliability performance and cycle life, are increasingly high. providing safe and reliable batteries is particularly important in the development of new energy vehicles and consumer electronic products.

service content

1) reliability test

mechanical performance test, climate environment test, electrical performance test.

2) safety testing

charge and discharge, short circuit, drop, heating, acupuncture, extrusion, immersion, external fire, etc.

3) regulatory testing

duty-free environmental testing of battery products subject to consumption tax, un38.3 testing of lithium batteries, magnetic testing, identification of cargo transportation conditions/preparation of msds and inspection services; according to iec62133, gb31241, gb/t 35590, gb/t 36972, gb/t 31484, gb/t 31486, ul1642, iec61960 and other international and domestic standards.

service process

q&a

components of a power battery system

battery case, battery module, thermal management system, battery management system, and security control module

comparison of the energy density of pure electric batteries with traditional energy sources

in the case of lithium iron phosphate batteries, the individual energy density has been increased from 100wh/kg to 130wh/kg, but the system energy density has only increased from 70wh/kg to 80wh/kg when the power battery is integrated. even if ternary lithium ion battery with high energy density is used, the energy density of domestic power battery system is only increased to about 100wh/kg, and even tesla's battery system energy density is only 170wh/kg. compared with traditional energy (gasoline is about 12000wh /kg, according to 20% conversion rate, about 2 400wh/kg) is incomparable.

battery charging time

it takes more than 8h for most pure electric vehicles in china to complete a charge with an on-board charger. even if high-power dc fast charging is used, it takes about 1h for the power battery system to be fully charged due to various factors. taking tesla as an example, the charging time of its ordinary charging method at home is more than 8h. using its special supercharger station, the battery can be charged to 80% capacity in only 45min.

bottlenecks in the development of pure electric vehicles

the imperfect charging network also hinders the development of the industry, making vehicle users less confident in the process of using the car. even in beijing, where the promotion of electric vehicles is very strong, the number of public charging piles is obviously difficult to meet the demand: chaoyang district has 131 fast and slow charging piles, ranking first among all the districts in beijing. however, the permanent population in the district is close to 4 million, and each charging pile needs to serve 30,000 people on average, which is a drop in the bucket.

our advantage

authoritative qualification

noa has been approved by certification and accreditation administration of the people’s republic of china（cnca）(cnca-r-2002-051), and has obtained qualification of china inspection body and laboratory mandatory approval (cma),and has passed the multiple approvals of china national accreditation service for conformity assessment (cnas), international accreditation service (ias), united kingdom accreditation service (ukas), joint accreditation system of australia and new zealand (jas-anz). noa has been approved by state administration for market regulation of china, and has been recognized as inspection and testing institution of china's special equipment, as well as the qualification of china's national equipment supervision and engineering supervision. noa-dci is the notified body of the ce directive of the european commission. noa has been recognized by the international electrotechnical commission (iecq) by obtaining electronic component quality assessment system. it is also a national inspection and assessment notified body of import and export commodity in china.noa is a high-tech enterprise in shanghai.

improve performance, realize asset value appreciation, and service throughout the entire value chain

from pre-design to post-operation, noa has the ability to guarantee the whole life cycle of the business. noa, as an independent third-party inspection company, has a large number of domestic and international standards and specifications proficient in design, welding, non-destructive testing, painting, packaging and other fields the experienced team of professional engineers and inspection experts, with more than ten years of experience in the domestic market, is familiar with all aspects of the domestic industrial equipment supply chain, and can provide you with technical support services for the full life cycle of technical services in a timely manner, combining various products. inspection, certification, testing, consulting, and auditing services can provide you with one-stop all-round comprehensive services.

quality, efficiency and service

noa has formed a mature and solid operation system in the development of more than 20 years. we let technical experts who are familiar with market regulations and testing standards and have professional industry experience to carry out inspection, evaluation and design review work. while meeting the requirements of domestic and international standards, we ensure that customers can obtain satisfactory service results in the first time with accurate time-sensitive management methods, and ensure that customers can seize the opportunity in the market competition.

service area

noa inspection services currently cover europe, australia, russia, some middle east regions and most regions in china. noa can ensure the consistency and continuity of customer service in different regions, and eliminate the impact of unfamiliar environments on customer quality. the guarantees and the impact of project implementation enable customers to participate in different markets across the country or around the world with flawless quality.

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