The Guardian Top News｜特斯拉因火灾风险在美国召回10,500套Powerwall 2电池系统

Firm had received 22 reports of overheating, raising risk of serious injury or death, though none have been reported

Tesla announced on Thursday it is recalling about 10,500 units of its Powerwall 2 home battery power systems in the US for fire and burn hazards after receiving 22 reports of overheating.

The US Consumer Product Safety Commission said the recall covers systems that may fail and overheat, raising the risk of serious injury or death, though no injuries have been reported.

The Powerwall 2 is a residential energy-storage unit that integrates with solar-panel systems, storing electricity for self-consumption, shifting usage to lower-cost periods and providing backup in grid outages.

The defect stems from certain lithium-ion battery cells that may overheat under certain conditions, smoke or ignite. In a few cases the defect has caused property damage, according to the recall notice.

Tesla said it is remotely limiting the charge on affected units to minimize risk while it arranges free replacements for customers.

The recall draws attention to Teslas battery-cell suppliers and comes as its energy-storage business plays a growing role in the companys expansion beyond electric vehicles.

该公司已收到22起过热问题报告，这些情况可能导致重伤或死亡风险，但截至目前尚未收到相关伤亡报告。

特斯拉公司周四宣布，因收到22起过热报告，将在美国召回约10,500台Powerwall 2家用电池储能系统，以防范火灾和灼伤风险。

美国消费品安全委员会表示，此次召回涉及的系统“可能出现故障并过热”，从而增加严重伤害或死亡的风险，不过目前尚未收到相关伤害报告。

Powerwall 2是一款家用储能设备，可与太阳能电池板系统集成，储存电力以供自用、将用电时段转移至低成本时段，并在电网断电时提供备用电源。

根据召回公告，该缺陷源于某些锂离子电池单元在特定条件下可能过热、冒烟或起火。少数案例中，该缺陷已造成财产损失。

特斯拉表示，在为客户安排免费更换服务期间，将通过远程限制受影响车辆的充电量来降低风险。

此次召回事件引发外界对特斯拉电池供应商的关注，与此同时，该公司的储能业务在其电动汽车之外的扩张战略中正扮演着日益重要的角色。