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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク High capacity oceanographic lithium battery pack ： ウィキペディア英語版 High capacity oceanographic lithium battery pack A High capacity oceanographic lithium battery pack is a type of battery pack used by oceanographers. Physical Oceanographers use high capacity lithium battery packs for long term deployments to extend the duration of the deployments and gather more data. Oceanographers often work in far away sites that are difficult to get to. The cost of getting to these remote sites, often by ship, can dominate the cost of an investigation. This motivates oceanographers to extend the duration of their deployments so that they can visit them less often. This means, among other things, increasing the capacity of their battery packs. ==Reasons for use== When possible, oceanographers use alkaline batteries because they are inexpensive and readily available. However, when alkaline batteries provide insufficient capacity, oceanographers turn to lithium battery packs, which can supply three times the capacity. Battery packs based on lithium thionyl chloride chemistry cost more than alkaline battery packs, but they provide roughly three times the energy density at about 60% of the weight (both by volume). Lithium batteries have other advantages as well. They produce negligible gas, and what gas is produced is contained in hermetically sealed metal containers. The voltage over the life of the pack varies considerably less than the voltage of an alkaline pack. Low current lithium cells also have relative low self-discharge, losing less than 10% of their capacity in 10 years. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「High capacity oceanographic lithium battery pack」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.