鋰電池在便攜式軍事應(yīng)用中的能量管理

　　戰(zhàn)場上的士兵的背負式設(shè)計的快速移動數(shù)字技術(shù)的進展。一方面，部隊需要有效的通信和即時獲取戰(zhàn)略信息。另一方面，設(shè)備需要在極端條件下生存，但保持便攜性，在性能上沒有妥協(xié)。

　　圖1：對于數(shù)字戰(zhàn)場上的現(xiàn)代士兵來說，可靠的電子裝備和有效武器一樣重要。

　　鋰電池長期以來被認為是軍用戰(zhàn)場上便攜式設(shè)備的最佳電源。雖然專業(yè)級的軍用一級鋰電池不容易用于商業(yè)用途，但也有一些商用級單元被指定以滿足極端溫度的要求，可用于類似堅固的應(yīng)用場合。從塔迪蘭電池TL系列就是一個例子。

　　However， rechargeable lithium batteries are now becoming more viable as power densities have increased and costs reduced. A key advantage is that they can be recharged from a variety of power sources， including portable and wearable solar panels and other energy-harvesting sources.

　　Power management is a critical issue in such applications， and military systems tend to use switching DC/DC conversion technology based on a buck-boost topology. These power management techniques are eminently transferable to commercial systems requiring battery charging by exploiting energy harvesting. Typical solutions include Linear Technology’s LTC3127 DC/DC buck-boost converter and LTC3105 DC/DC converter， and Texas Instruments’ extended temperature range REG71050DDCT switched capacitor voltage converter and BQ24650 battery charge controller.