Applications of RFID in the New Energy Vehicle Sector

At 3:00 a.m., the final assembly shop of a new energy vehicle manufacturer is still brightly lit. Every 60 seconds, a new vehicle rolls off the production line; hundreds or even thousands of components must be delivered to the correct workstation at the right time and installed on the correct vehicle. If even a single battery pack is installed incorrectly or a motor batch is mixed up, the cost of a recall could reach millions of dollars.
This is why Applications of RFID in the New Energy Vehicle Sector are becoming increasingly important for modern automotive manufacturing. By creating an invisible “data chain,” RFID (Radio Frequency Identification) technology provides every component, workstation, and vehicle with a unique electronic identity. It enables production lines to automatically “identify objects, recognize processes, and record data,” ensuring accurate assembly, real-time tracking, and complete lifecycle traceability.
From battery production and motor assembly to vehicle manufacturing, parts logistics, and after-sales management, RFID helps new energy vehicle manufacturers achieve zero installation errors, improved production efficiency, and reliable quality traceability. Today, we will explore how RFID is applied throughout the new energy vehicle production process and the key problems it helps solve.

1.Why is RFID so important in new energy vehicles?

To understand why RFID is becoming increasingly important in new energy vehicles, we must first examine the manufacturing characteristics of this industry.

Flexibility: Multiple vehicle models are produced on the same production line, with a wide variety of parts and frequent changeovers; traditional manual verification is prone to errors.

High production cadence: Production lines operate at extremely high speeds, requiring identification response times measured in milliseconds.

Robust traceability: From a single battery cell to a complete vehicle, a full lifecycle data chain is essential for quality and compliance;

Harsh environments: Dense concentrations of metal parts, oil contamination, high temperatures, and vibration pose a severe test of equipment reliability.

It is precisely these characteristics that have propelled RFID from an “optional tool” to a “standard production line feature.” We have outlined its key applications within the new energy vehicle supply chain:

2.How Is RFID Being Implemented in the New Energy Vehicle Industry?

So, specifically, how is RFID actually implemented in every stage of the production process?

Scenario 1

Power Battery Production Line: Pallet and Carrier Identification

Cell pallets circulate repeatedly through the formation, capacity sorting, and module assembly stages. Manual scanning is inefficient and prone to missed reads, and the mixed use of pallets can also lead to batch confusion. The solution is to install anti-metal UHF tags on the bottom of the pallets and deploy fixed-mount readers at workstations to automatically identify pallet IDs and link them to cell batches. As a result, the recognition rate has increased from approximately 95% to over 99.9%, the takt time per workstation has improved by 15%–20%, and cells are fully traceable from the start of the production line to the final pack.

Scenario 2

Motor Assembly Line: Component Traceability and Error Prevention

Motors consist of multiple components, including the rotor, stator, housing, and bearings; installing the wrong part—even just one model—can result in the entire batch having to be reworked. After key components are tagged with HF/UHF labels, workstation readers automatically verify whether the “current workstation + vehicle model + part” match. This reduces the error rate by more than 90%, and assembly data is automatically recorded in the MES, eliminating the need for manual data entry.

Scenario 3

Vehicle Final Assembly AVI (Automatic Vehicle Identification)

Traditional barcodes are easily covered by paint or worn down in the paint shop, preventing final assembly stations from identifying vehicle identities. By installing high-temperature-resistant, anti-metal tags on body skids or carriers, vehicle VIN information is automatically identified throughout the entire process—from welding to final assembly. This ensures 100% end-to-end vehicle identity tracking, enables automatic distribution of process parameters, and effortlessly supports flexible mixed-model production lines.

Scenario 4

Parts Logistics and Sequential Supply

New energy vehicles feature a large number of parts SKUs and suppliers, making the “last mile” from the warehouse to the production line the most prone to material errors and shortages. By labeling returnable containers and material racks and deploying read/write points at warehouse entrances, on forklifts, and at production line stations, material locations and kit completeness can be tracked in real time. This improves inventory turnover, reduces line stoppages, and ensures more stable JIT (Just-In-Time) supply.

Scenario 5

Tooling and Equipment Asset Management

Workshops contain a large number of custom-made tooling, fixtures, and material carts, making it difficult for traditional ledgers to track their real-time locations and statuses. By assigning a unique tag to each tool and deploying read/write points at entry/exit points and storage areas, you can track “who is borrowing it, where it is stored, and whether it is overdue.” This boosts tool utilization, reduces loss rates, and transforms inventory counts from “monthly” to “real-time.”

Scenario 6

Quality Traceability: From Components to Complete Vehicles

When quality issues arise, manually searching through records is time-consuming and makes it difficult to quickly identify components from the same batch. By linking the ID of each key component to the vehicle’s VIN and writing the data into the MES/quality system, traceability time is reduced from “hours” to “seconds,” and the scope of recalls can be precisely narrowed down to specific batches.

New Energy Vehicle Manufacturers' Attitudes Toward Domestically Produced RFID Are Quietly Changing

The attitude of new energy vehicle manufacturers toward domestically produced RFID solutions is shifting from “giving it a try” to “making it their first choice.” The reasons are straightforward:

● Supply chain security: No longer relying solely on imported critical equipment helps avoid “bottleneck” risks;

● Cost optimization: For equivalent performance, domestically produced solutions offer better overall cost efficiency;

● Response speed: Local R&D and local service support result in shorter customized development cycles;

And AnDe Electronics happens to have a proven track record in all these areas:

It is especially important to emphasize that industrial workshops are not laboratories. Dense metal structures can attenuate signals, oil residue and high temperatures can shorten service life, and high production rates can cause delays in testing and detection—many devices with “impressive specifications” fail to adapt to the workshop environment as soon as they are installed. The reason An’s Electronics has been able to establish a firm foothold in industrial settings is precisely because of this stability, honed over the long term on real production lines.

RFID readers and Writers

Practical Application Cases in the New Energy Vehicle Sector

Case Study 1: Assembly Line for High-Voltage Electronic Water Pumps in Thermal Management

At the assembly loading station, anti-metal RFID tags are mounted on the sides of the circulating fixture boards (pallets). Once the pallet is in position, a reader captures its unique ID, which is transmitted via a gateway directly to the PLC and integrated with the MES. The system retrieves the product model, BOM, and process records to perform error-proofing checks; upon completion of assembly, the torque, press-fit displacement, and OK/NG results are written back to the tag. The pallet then moves to the next station, enabling end-to-end traceability.

Case Study 2: Automotive Parts Manufacturing Assembly Line

For the machining of automotive parts, RFID devices are used to identify carriers and link them to product information. On the assembly line, readers automatically identify carrier IDs to facilitate product sorting, machining, and automated control, ensuring accurate information linking and process traceability for different components throughout the machining process.

Case Study 3: Automobile Assembly Line

In the vehicle assembly shop, RFID devices are deployed at key points along the production line to enable product identification and flexible production. By reading component information in real time, the system helps prevent errors and omissions and facilitates quality monitoring, ensuring process compliance and end-to-end data traceability throughout complex assembly processes.

Case Study 4: Electric Drive Assembly Line

RFID tags are attached to reusable workholding pallets, which carry the electric drive units through the entire assembly line. From housing pre-assembly, high- and low-voltage wiring harness assembly, rotary encoder installation, tightening, and airtightness testing to EOL unit testing, reading and writing devices identify the pallets throughout the entire process, ensuring data continuity across multiple processes and process error prevention.