Effective battery thermal management (BTM) is critical to ensure fast charging/discharging, safe, and efficient operation of batteries by regulating their working temperatures within an optimal range. However, the existing BTM methods not only are limited by a large space, weight, and energy consumption but also hardly overcome the contradiction of battery cooling at high temperatures and battery heating at low temperatures. Here we propose a near-zero-energy smart battery thermal management (SBTM) strategy for both passive heating and cooling based on sorption energy harvesting from air. The sorption-induced reversible thermal effects due to metal–organic framework water vapor desorption/sorption automatically enable battery cooling and heating depending on the local battery temperature. We demonstrate that a self-adaptive SBTM device with MIL-101(Cr)@carbon foam can control the battery temperature below 45 °C, even at high charge/discharge rates in hot environments, and realize self-preheating to ∼15 °C in cold environments, with an increase in the battery capacity of 9.2%. Our approach offers a promising route to achieving compact, liquid-free, high-energy/power-density, low-energy consumption, and self-adaptive smart thermal management for thermo-related devices.

中文翻译：

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通过从空气中吸附能量来实现近零能量智能电池热管理

有效的电池热管理（BTM）对于通过将电池的工作温度调节在最佳范围内来确保电池的快速充电/放电，安全高效地运行至关重要。然而，现有的BTM方法不仅受到空间，重量和能量消耗的限制，而且难以克服高温下电池冷却和低温下电池加热的矛盾。在这里，我们提出了一种基于从空气中吸收能量的被动加热和冷却方式的接近零能量的智能电池热管理（SBTM）策略。由于金属-有机骨架水蒸气的解吸/吸附而引起的吸附引起的可逆热效应会自动根据本地电池温度对电池进行冷却和加热。我们证明了带有MIL-101（Cr）@碳泡沫的自适应SBTM装置即使在高温环境下也能以高充电/放电速率将电池温度控制在45°C以下，并能实现预热至约15°C在寒冷的环境中，电池容量增加了9.2％。我们的方法为实现与热相关设备的紧凑，无液体，高能量/功率密度，低能耗和自适应智能热管理提供了一条有希望的途径。