一份「后罗马仕」时代的充电宝/手机保养指南

Core Viewpoint - The article discusses the recent issues surrounding power banks, particularly focusing on the quality problems caused by a specific battery cell supplier, which led to safety concerns and recalls in the market [4][8][6]. Group 1: Quality Issues and Supply Chain - A major quality issue with power banks was traced back to a battery cell supplier that improperly replaced the separator material between the positive and negative electrodes, resulting in defective products that could overheat, swell, or even catch fire [8][6]. - The defective power banks entered the market around early 2024, leading to widespread recalls and bans due to safety hazards [8][6]. Group 2: Battery Lifespan and Maintenance - Lithium-ion batteries, including those in power banks, have a limited lifespan due to the inevitable chemical reactions that occur during charging and discharging cycles, which can lead to irreversible damage [12][13]. - The phenomenon of lithium plating, where lithium ions form sharp dendrites that can pierce the separator, is a significant factor in battery failure and safety risks [16][15]. Group 3: Recommendations for Battery Care - Users are advised to avoid extreme temperatures and humidity, as well as to monitor for physical changes in batteries, such as swelling or leakage, which indicate potential hazards [21][24]. - For aging batteries that show no physical changes but have degraded performance, it is recommended to charge them periodically and store them in a controlled environment to extend their usable life [33][35]. - Devices currently in use should be protected from water exposure and physical impacts, as these can lead to short circuits and other failures [39][42].