73743! These new energy models will be recalled in 2021 due to defective power batteries.

In 2021, China's automobile production and sales rose against the trend, completing 26.082 million and 26.275 million respectively, an increase of 3.4% and 3.8% respectively over the same period last year, ending three consecutive years of decline. Among them, the production and marketing of new energy vehicles in China has completed 3.545 million and 3.521 million respectively, an increase of 1.6 times over the same period last year, with a market share of 13.4%, ranking first in the world for seven consecutive years.

However, with the sharp rise in car sales, the number and scale of car recalls have also begun to increase sharply. While car production and sales have ended a downward trend for three consecutive years, the total number of car recalls has also ended three consecutive declines. According to the data released by the defective Product Management Center of the State Administration of Market Supervision and Administration, Battery Network found that in 2021, China issued a total of 158car recalls, with a total recall of 8.751 million vehicles, an increase of 29% over the same period last year. Among them, in terms of new energy vehicles, Tesla issued a total of six recalls in China, involving 543800 vehicles, ranking first in the number and number of recalls of new energy vehicles in the country.

Among the problems involved in the recall of new energy vehicles, the defects of power batteries should not be underestimated. According to the data of the State Administration of Market Supervision and Administration, Battery Network counted the new energy models recalled due to power battery defects in 2021, involving multiple car brands, with a total recall of 73743 vehicles.

January

Yunnan Aerospace Shenzhou YH5022XXYBEV Pure Electric van Transporter

(a) recall a total of 192 YH5022XXYBEV pure electric van transporters whose production date is from December 2, 2017 to December 10, 2017.

For the vehicles within the scope of this recall, first, due to the unreasonable wiring of the voltage acquisition line in the battery system box, which may be extruded by the strip, the voltage acquisition line may be damaged; second, the control strategy setting of the battery management system is unreasonable and the charging cut-off voltage is on the high side. In extreme cases, the voltage acquisition line may be short-circuited and the battery pack may be overcharged, causing the battery package to heat out of control, resulting in vehicle fire and safety risks.

(2) recall a total of 276 YH5022XXYBEV pure electric van carriers whose production dates were from October 10, 2017 to December 1, 2017 and from July 13, 2018 to December 18, 2018.

In the scope of this recall, the vehicle due to unreasonable battery management system control strategy setting, charging cut-off voltage is on the high side, in extreme cases may lead to battery overcharge, resulting in battery package heat out of control, resulting in vehicle fire, there are hidden dangers.

February

Yunnan Wulong Changjiang FDE6100PBABEV03, FDE6100PBABEV06 10m pure electric city bus

A few days ago, Yunnan Wulong Automobile Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided that a total of 95 10-meter pure electric city buses of Changjiang brand FDE6100PBABEV03 and FDE6100PBABEV06 produced from November 25, 2016 to December 7, 2016 will be recalled from February 20, 2016.

The power batteries carried by vehicles in the scope of this recall: 1. Due to the poor consistency of battery unit capacity, the pressure difference is too large, monomer overrelease, monomer deformation, drum bag, liquid leakage and so on; 2. The monomers in the battery package are connected and bolted through a copper bar (composed of thin copper plates). Due to the gap between the battery monomers, there is relative movement between the monomers during the operation of the vehicle. The back and forth expansion and contraction of the copper bar leads to the fracture of the copper bar, the contact between the copper bar and the battery box, and the short circuit when the positive and negative copper bar is in contact with the battery box at the same time. Do not meet the requirements of relevant national standards, in extreme cases may cause battery pack fire, there are hidden dangers.

Nanjing Jinlong Kaiwo D09 and Kaiwo D10 trucks

A few days ago, Nanjing Jinlong bus Manufacturing Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided that a total of 1539 trucks of Kaiwo D09 and Kaiwo D10 will be recalled from February 5, 2021.

For the vehicles within the scope of this recall, due to the interference between the internal voltage sampling harness of the power battery and the module metal bracket, the sampling harness is short-circuited with the core shell, which may cause thermal runaway of the power battery, and there is a risk of fire if the wire harness is short-circuited, and there is a safety hidden danger.

March

Zhejiang Haoqing XC40 car

A few days ago, Zhejiang Haoqing Automobile Manufacturing Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided to recall a total of 465 2021 XC40 vehicles produced from March 13, 2020 to February 19, 2021 from now on.

For some vehicles within the scope of this recall, due to the supplier, the microprocessor in the power battery energy control module (BECM) is reset, which may cause the high voltage battery connection to be disconnected while driving. There is no warning while driving, and there is a risk of accidental disconnection of the high pressure system. In extreme cases, driving may lose power, there are safety risks. The steering system and braking system of the vehicle are working normally.

Zhejiang Haoqing Ji Xing 2 Pure Electric vehicle

A few days ago, Zhejiang Haoqing Automobile Manufacturing Co., Ltd. authorized and entrusted Jixing Automobile sales Co., Ltd., in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products, the recall plan was filed with the State Administration of Market Supervision and Administration. It is decided that from December 9, 2019 to February 4, 2021, a total of 2031 domestic Ji Xing 2 first-release pure electric vehicles will be recalled.

For the vehicles within the scope of this recall, due to the supplier, the microprocessor in the power battery energy control module (BECM) is reset, which may cause the high voltage battery connection to be disconnected while driving. There is no warning while driving, and there is a risk of accidental disconnection of the high pressure system. In extreme cases, driving may lose power, there are safety risks. At this time, the steering system and braking system of the vehicle are working normally.

BAIC new energy EX360, EU400 pure electric vehicles

A few days ago, BAIC New Energy Automobile Changzhou Co., Ltd., Beijing Automobile Co., Ltd., BAIC (Guangzhou) Automobile Co., Ltd., in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products, filed the recall plan with the State Administration of Market Supervision and Administration, and decided to start from March 24, 2021. Recall a total of 31963 EX360 and EU400 pure electric vehicles manufactured from November 1, 2016 to December 21, 2018.

For vehicles within the scope of this recall, due to the consistency differences of some vehicle power battery systems, continuous and frequent fast charging for a long time in the high temperature environment may lead to deterioration of the performance of individual single battery cells and occasional failure in extreme cases. Cause power battery fire risk, there is a safety risk.

April

TEG6106BEV car in the medium car era

A few days ago, CRRC Times Electric vehicle Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided to recall a total of 15 TEG6106BEV models produced during the period from June 1, 2018 to June 29, 2018 from April 30, 2021.

The vehicles within the scope of this recall due to the early failure of power battery cells, BMS control did not achieve the desired results, there is a risk of cell overdischarge or short circuit, which may cause battery heat out of control and safety risks.

May

FAW Hongta Yunnan Jiefang CA5040XXYL3BEV and CA5030XXYBEV pure electric van transporter

A few days ago, FAW Hongta Yunnan Automobile Manufacturing Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided that from now on, 101 Jiefang brand CA5040XXYL3BEV and 53 CA5030XXYBEV pure electric vans produced from July 1, 2018 to December 29, 2018 will be recalled, with a total of 154 vehicles.

Due to the lack of welding strength of the power battery box, some vehicles within the scope of this recall have the phenomenon of post de-welding and module bracket fracture. It may cause the copper sheet on the copper bar connected to the battery module to break, and the positive and negative copper bar will cause short circuit when it comes into contact with the box at the same time, which may cause the battery package to catch fire in extreme cases, which may cause safety risks.

Brilliance BMW iX3 Electric vehicle

A few days ago, brilliance BMW Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. Since June 1, 2021, a total of 6636 domestic iX3 electric vehicles have been recalled from September 1, 2020 to April 30, 2021.

There are some problems in the design of the software of the vehicle battery control unit within the scope of this recall. When a serious collision occurs, the software of the battery control unit can not ensure the fast Discharge of the intermediate circuit in the high voltage vehicle network within the required time. As a result, the high voltage of the vehicle electrical system may be transmitted to the 12V electrical system, resulting in functional damage to the 12V electrical system and its components, resulting in some functions of the vehicle (such as warning lights, vehicle lighting or emergency telephone functions, etc.) can not work properly after the collision, and there are hidden dangers.

June

Hunan Cheetah, Anhui Cheetah-Cheetah CS9 Pure Electric vehicle

A few days ago, Hunan Cheetah Automobile Co., Ltd., and Anhui Cheetah Automobile Co., Ltd., in accordance with the requirements of the regulations on the Administration of defective Automobile products recall and the measures for the implementation of defective Automobile products recall, filed the recall plan with the State Administration of Market Supervision and Administration, recalling the following vehicles from June 15, 2021.

(1) Hunan Cheebao Automobile Co., Ltd.

Recall a total of 1119 cheetah CS9 pure electric vehicles made between August 19, 2018 and November 29, 2018.

(2) Anhui Cheetah Automobile Co., Ltd.

Recall a total of 2998 cheetah CS9 pure electric vehicles made between December 5, 2017 and December 28, 2017.

There are problems in the vehicle power battery package within the scope of this recall, such as loose connection of the copper bar in the package, weak welding of the acquisition line connection point of the voltage and temperature sensors in the package or the welding point of the battery heating piece wire harness, and internal short circuit caused by the power battery cell, which may lead to thermal runaway of the vehicle power battery in extreme cases, resulting in fire and safety risks.

Hunan Jiangnan Zhongtaiyun 100s Electric vehicle

A few days ago, Hunan Jiangnan Automobile Manufacturing Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided to recall a total of 200 Zhongtaiyun 100s electric vehicles produced between October 17, 2017 and November 30, 2017 from July 1, 2021.

The power batteries carried by vehicles in the scope of this recall may lead to long-term high-voltage floating charge due to defects in BMS control strategy, resulting in serious cell diaphragm blockage and increased risk of internal short circuit. After the deterioration of the cell reaches the critical state, the vehicle continues to run, which may lead to the internal short circuit of the cell, resulting in thermal runaway of the power battery, and there is a hidden danger of safety.

Zhengzhou Nissan Shuai Ke Pure Electric vehicle

A few days ago, Zhengzhou Nissan Automobile Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. From now on, a total of 559 Shuaike pure electric vehicles produced from April 11, 2018 to April 13, 2019 will be recalled.

In some vehicles within the scope of this recall, after a long period of frequent and fast charging, the performance of the internal cell of the power battery decreases, which may cause occasional failure of the power battery, abnormal pressure difference and internal short circuit, and in extreme cases, the power battery may be out of control. There are safety risks.

July

Great Wall Euler IQ Electric vehicle

A few days ago, Great Wall Automobile Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided that a total of 16216 Great Wall Euler IQ electric vehicles manufactured from July 7, 2018 to October 30, 2019 will be recalled from July 16, 20121.

There is a matching difference between the consistency of some power batteries carried by vehicles in the scope of this recall and the control strategy of BMS software. After long-term continuous and frequent fast charging, the performance of the battery decreases, and in extreme cases, the power battery may be out of control, and there is a hidden danger of safety.

Chery Erize 5e electric vehicle

A few days ago, Chery Automobile Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided that a total of 1407 Chery Erize 5e electric vehicles produced from July 20, 2018 to May 28, 2019 will be recalled from July 16, 20121.

In some vehicles within the scope of this recall, there may be consistent fluctuations in the assembly of parts in the power battery. After the vehicle has been used for a long time, the bottom of the vehicle may be hit by abnormal Tackle or severe bumps, in extreme cases, the high voltage connection of the battery package system may be loose, the local contact internal resistance may be increased, and the components will overheat and bake the cell when the high current is used, which may cause the battery heat to get out of control and there is a safety hidden danger.

August

Shanxi Chenggong Taihang Chenggong Brand Pure Electric closed truck

A few days ago, Shanxi Chenggong Automobile Manufacturing Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. It is decided that a total of 5900 Taihang Chenggong brand pure electric closed trucks produced from October 13, 2017 to December 20, 2018 will be recalled from August 6, 2021.

(1) the vehicle within the scope of this recall is due to the design and manufacture of the power battery assembly supplier: 1, the rubber sealing ring of the battery package maintenance switch has uneven deformation and is easy to aging after long-term use, and there is a risk of entering water when the vehicle is wading; 2, the consistency of part of the battery package is poor, which leads to the difference gradually increasing after long-term charge and discharge use, which may cause abnormal pressure difference of power battery and cause internal short circuit. In extreme cases, the thermal control of the power battery may be out of control, and there is a hidden danger of safety.

(2) due to the unreasonable design of the rotation and fixing mode of the drive motor, the vehicle within the scope of this recall may become loose and produce angular displacement during the use of the vehicle, resulting in a change in the reference of the zero signal, and the drive motor controller has no corresponding control strategy for this failure mode. May cause the drive motor to run out of control, in extreme cases cause the speed out of control, lead to driving safety accidents, there are hidden dangers.

October

BMW China plug-in Hybrid X5 xDrive45e vehicle

A few days ago, BMW (China) Automobile Trading Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. Since October 22, 2021, the recall of some imported plug-in hybrid X5 xDrive45e vehicles from July 17, 2020 to December 1, 2020 will be extended, with a total of 4 vehicles.

Due to mistakes in the production and assembly process of the power battery supplier, some small welding slag may not be detected in the shell of the battery unit in the scope of this recall. This may cause internal short circuit of the power battery when charging to a higher voltage. In severe cases, the short circuit of the battery may be heated, and in extreme cases, it may even cause the battery to catch fire, which may cause safety risks.

December

Brilliance BMW iX3 Electric vehicle

A few days ago, brilliance BMW Co., Ltd. filed the recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the regulations on the recall of defective Automobile products and the measures for the implementation of the regulations on the recall of defective Automobile products. Since December 24, 2021, a total of 1974 domestic iX3 electric vehicles have been recalled from April 30, 2021 to August 27, 2021.

In the scope of this recall, the poor welding quality at the interface pins of the internal contact system of the power battery of some vehicles may lead to the deviation between the actual value of temperature / voltage and the measured value. When the deviation value exceeds the set safety value, the vehicle will start the failure protection mode of the battery system, appear the fault code or alarm message, and cut off the output of the power battery, resulting in the interruption of power while the vehicle is driving, and there is a safety hidden danger.

Conclusion

It can be seen that the overheated fire of power battery is still the main safety hidden danger faced by new energy vehicles at present. At the same time, the power disappears and the speed is out of control caused by power battery defects is also increasing. The rapid development of new energy vehicles is bound to bring a series of quality problems. For car companies and power battery manufacturers, while constantly improving their products, they should pay more attention to product quality and establish a sound recall mechanism to fully protect the safety and rights and interests of car owners.

Battery Network has learned that at present, with the continuous upgrading of car intelligence, many car companies can choose more flexible ways to deal with vehicle recalls. For example, the brilliance BMW iX3 electric vehicle batch recalled in December 2021, brilliance BMW will upgrade the battery control unit software for vehicles within the recall range free of charge by means of remote software upgrade (OTA). Users do not need to go to the store to complete the software upgrade. This flexible recall and upgrade method can not only save time and money costs for car owners and car companies, but also eliminate safety risks more efficiently and more quickly.

It is worth noting that the "China Insurance Industry Association New Energy vehicle Commercial Insurance exclusive clauses (trial)" has been officially released on December 14, 2021, such as the three electric systems that new energy vehicle owners are worried about, fire and combustion have been included in the scope of new energy vehicle insurance, and there are a variety of additional risks, including charging equipment, it is believed that the rights and interests of the majority of new energy vehicle owners can also be better protected.