Hwaseong battery factory fire

On 24 June 2024, in Hwaseong, South Korea, a lithium battery factory owned by Aricell caught on fire after several batteries exploded. The fire killed 23 workers and wounded eight more, mostly Chinese nationals.

Background
Aricell manufactures non-rechargeable lithium-thionyl chloride batteries. A 1986 Jet Propulsion Laboratory study titled Safety Considerations of Lithium-Thionyl Chloride Cells noted that "safety hazards have ranged from mild venting of toxic materials to violent explosions and fires."

Explosions


Starting at 10:31 a.m. KST on 24 June 2024, a series of explosions occurred at a warehouse in a battery plant which contained over 35,000 batteries. The fire started at a workstation on the second floor. The batteries contained many flammable components such as lithium, causing the fire to spread rapidly. Large clouds of white smoke were present throughout, with numerous explosions occurring. About 100 people were working at the warehouse at the time of the initial explosion. Many sections of the roof collapsed due to the fires, and large sections of concrete were scattered around nearby streets due to the force of the explosions.

Roughly 145 personnel and 50 pieces of equipment were deployed to the scene. The fire caused by the explosions was extinguished about five hours after the initial explosion, at 3:10 p.m. KST.

Casualties
Eighteen Chinese workers, two South Koreans and one Laotian were among the dead, according to the Hwaseong fire service. Gyeonggi Province fire official Cho Sun-ho reported that most of the workers were temporary employees who likely were not familiar with the floor plan. He said that the workers died of smoke inhalation instead of burn injuries. The fire started on the second floor and spread to the workers' location where they likely took one to two breaths before succumbing to the toxic battery smoke within 15 seconds.

Due to the intensity of the fire, it was difficult to immediately identify the dead. Missing people were discovered by geolocating their mobile phone signals to the second floor. Officials noted that the dead workers likely could not escape using stairs to the ground. Twenty-two bodies were retrieved, while one victim subsequently died in a hospital.

Eight people were injured, two with second-degree burns. One person is still missing.

Investigation
Three company officials are under investigation on suspicion of violating industrial safety laws.

Response
Government officials, including the Chinese ambassador to South Korea Xing Haiming and South Korean President Yoon Suk Yeol, visited the site later that day and expressed their condolences to the victims. Yoon also ordered a full investigation into the cause of the fire.

Aricell CEO Park Soon-kwan apologized and expressed his condolences to those affected by the accident on the following day. Park also stated that he would provide support and will cooperate fully with the investigation.