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specific capacity

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specific capacity 【電學】電離率；【物理學】比容量。

【電學】電離率；【物理學】比容量。 “specific“ 中文翻譯：   adj. 1.特殊的；特有的；特定的，專門的。 2.明確 ...“capacity“ 中文翻譯：   n. 1.包容力，吸收力，收容力。 2.容積，容量；【電 ...“boiler specific capacity“ 中文翻譯：   鍋爐單位蒸發量“capacity, specific heat“ 中文翻譯：   比熱容“practical specific capacity“ 中文翻譯：   實用電容率“species-specific capacity“ 中文翻譯：   物種特有能力“specific adsorptive capacity“ 中文翻譯：   比吸附額“specific capacity of boiler“ 中文翻譯：   鍋爐的比容“specific capacity of well“ 中文翻譯：   井比容量; 井的比產率“specific carrying capacity“ 中文翻譯：   特殊運載能力“specific crushing capacity“ 中文翻譯：   比粉碎能力“specific damping capacity“ 中文翻譯：   比阻尼容量“specific furnace capacity“ 中文翻譯：   爐子的單位容量“specific grate capacity“ 中文翻譯：   爐床比容量“specific gravity capacity“ 中文翻譯：   動力機器基礎比阻尼容量; 土的動力性質比阻尼容量“specific heat capacity“ 中文翻譯：   比熱容量，比熱容; 焦耳/千克開爾文; 特殊熱容量; 土壤比熱“specific heat capacity of water“ 中文翻譯：   水的比熱容“specific inductive capacity“ 中文翻譯：   電容率; 相對介電常數“specific membrane capacity“ 中文翻譯：   比電容,膜比阻“specific moisture capacity“ 中文翻譯：   比水分容量“specific transformer capacity“ 中文翻譯：   變壓迫容量“specific unit capacity purchases“ 中文翻譯：   規定賣出容量“specific water capacity“ 中文翻譯：   比水容量“specific well capacity“ 中文翻譯：   水井單位出水量“theoretical specific capacity“ 中文翻譯：   理論電容率

specific characters

Lifepo4 / c composite sample synthesized using coal tar bitumen and carbon both as the carbon precursor under 300 / 3 h + 650 / 6 h also gives a good discharge curves , the discharge specific capacity reached 104 . 0 mah / g 、 100 . 2 mah / g under the measuring current of 183 ma / g 、 366 ma / g respectively , and it keeps the good cycle performance in nearly 140 cycles . few reports were related to the lifepo4 / c composite synthesized using low cost bitumen as the carbon precursor 采用煤焦油瀝青和乙炔黑同時作為碳前驅體時,在300 / 3h + 650 / 6h的焙燒制度下得到的試樣,在183 、 366ma / g的大電流密度下仍有104 . 0mah / g 、 100 . 2mah / g左右的放電容量,在140次循環內均表現出了很好的循環性能。

While testing ofeis at different depth of dischargeand charge - discharge at different charge - discharge rate reveale that , these material indicate lower conductivity at highcharge - discharge rate , resulting in bad electrochemical perforemence . melting - cooling and inorganic sol - gel were adopted , which facility - simpleand operating - easy , to prepare v _ 2o _ 5 xeroxes as positive material of li - ion battery . the comparision of structual and electrochemical performance between thesecathode materials were investigated for the first time . their electrochemicalbehaviorswerestudiedbygalvanostaticcharge - discharge , cyclicvoltammetry ( cv ) , and electrochemical impedance spectroscopy ( eis ) techniques . the results indicte the sample that prepared by melting - cooling revealed moreexcellent performance at low charge - discharge rate , which achieved a high initialdischarge specific capacity of approximate 320 mah ? g - 1 通過各種充放電測試，循環伏安( cv )曲線以及電化學阻抗譜( eis )等測試手段對材料的電化學性能進行表征，結果發現，在低倍率放電下，熔融淬冷法合成的材料具有更好的電化學性能， 0 . 1c恒流放電至1 . 8v時首次放電容量達320mah ? g - 1 ，并且發現， v _ 2o _ 5作為正極材料組裝成的鋰離子二次電池，除首次循環具有較大的不可逆容量外，其余循環可逆且容量保持能力較好， 20次循環后，容量只衰減了6 . 40 % 。

Meanwhile , the modified materials were also conducted on the basis of limno2 material . in addition , we used x - ray diffraction ( xrd ) was to analyze phase composition , scanning electron microscope ( sem ) to observe superficial morphology , charge - discharge test to study specific capacity and cyclic properties , cyclic voltammetry ( cv ) and electrochemical impedance spectroscope ( eis ) to discuss electrochemical reactive mechanism 通過x射線衍射( x - raydiffraction )分析了合成產物的晶型結構,掃描電鏡( scanningelectronmicroscope )觀察了材料的形貌,恒流充放電測試研究了合成材料的比容量和循環性能,循環伏安( cyclicvoltammetry )和電化學阻抗譜( electrochemicalimpedancespectroscope )簡單分析了材料的電化學反應機理。

Nano - sacle coo is apt to dissolve in the electrode homogeneously , and better conductive net of coooh come into being , thus contribute a lot to the procedure of the activation . the electrode with nano - scale coo and cnts shows higher discharge voltage and higher discharge capacity . nano - scale additives can improve the specific capacity of the electrode , the volume specific capacity and the mass specific capacity of the electrode with nano - scale coo are 784mah / cm3 and 224mah / g , respectively 結果表明：添加劑為納米coo的電極的活化性能最好，納米coo相對于普通coo能更加均勻的分布在鎳電極內，也更易溶解、反應生成coooh導電網路，從而加快了鎳電極的活化進程；添加納米coo和添加cnts的極片具有較高的放電電位和較大的放電容量，納米添加劑能有效提高鎳正極活性物質的放電效率和利用率；納米添加劑可以有效地提高鎳正極片的容量密度，其中添加納米coo的極片體積容量密度達到784mah cm ~ 3 ，質量容量密度達到224mah g ；添加cnts的極片體積容量密度達到778mah cm ~ 3 ，質量容量密度達到223mah g 。

By using an oxide that could reversibly intercalate ili instead of 0 . 5 li per 3d - metal , one could increase the specific capacity of the cell by 68 % . in contrast , if one doubles the specific capacity of the negative electrode ( liq - lice ) , one increases the overall specific capacity of the cell by only 12 % 如果正極的比容量增加一倍，即每個3d金屬能嵌入1個理，那么電池的比容在量就能增加68 ；如果負極的比容量增大1倍，那么電池的比容量只增大12 ，所以對埋離于電池的研究主要應放在對正極材料的研究上， limn 。

Presently lithium iron phosphate ( lifepo4 ) has become more and more concerned for its so many obvious characters such as few toxic 、 environmental friendly 、 low raw material cost 、 high specific capacity 、 excellent cycle performance and safety , and it is considered to be the most promising cathode material for dynamical battery 磷酸亞鐵鋰( lifepo4 )以其無毒、對環境友好、原材料來源廣泛、比容量高、循環性能及安全性能好等顯著特點,受到了人們的廣泛關注,被認為是動力電池最有發展前途的正極材料。

The influences of the calcination temperature and time , the concentration ratio of deionized distilled water to c - v _ 2o _ 5 and the agitation time on the synthesis of a - v _ 2o _ 5 were studied by orthogonal array design and the interactions between the parameters were considered . so the optimum experimental factors were obtained . lithium rechargeable battery positive electrodes based on these optimum conditions could lead to experimental cells with large discharge specific capacity and good cycling performance 用正交實驗研究了煅燒溫度、煅燒時間、去離子水與晶態v _ 2o _ 5 ( c - v _ 2o _ 5 )的濃度比和陳化時間對合成a - v _ 2o _ 5的影響,討論了這些參數間的交互作用,并獲得了最優試驗參數,以該最優試驗參數所制備的a - v _ 2o _ 5為可充鋰電池正極的實驗電池,具有較大的放電比容量和較好的循環壽命。

Meanwhile the modified materials were also conducted on the basis of lifepo4 material . in addition , we used x - ray diffraction ( xrd ) to analyze phase composition , scanning electron microscope ( sem ) to observe superficial morphology , charge - discharge test to study specific capacity and cyclic properties , cyclic voltammetry ( cv ) and electrochemical impedance spectroscope ( eis ) to discuss electrochemical reactive mechanism . the study show that doped - lifepo4 have an good olivine structure and good electrochemicval using lif as li source via high solid - state reaction 通過x射線衍射( x - raydiffraction )分析了合成產物的結構晶型,掃描電鏡( scanningelectronmicroscope )觀察了材料的形貌,恒流充放電測試研究了合成材料的比容量和循環性能,循環伏安( cyclicvoltammetry )和電化學阻抗譜( electrochemicalimpedancespectroscope )簡單分析了材料的電化學反應機理。

By optimization of side functional group and selection of polymer precursor , the resulting composite materials shows high reversible specific capacity about 850 mah g “ 1 in first discharge which remained above 600 mah g “ 1 after 50 cycles at the current density of 0 . 3 ma cm “ 2 at room temperature . the utilization of - ii - sulfur in the composites approaches 90 % and galvanic efficiency is about 100 % 通過選擇具有適當的側鏈的有機聚合物，得到的復合材料在鋰電池中首次放電的比容量達到850mahg ~ ( - 1 ) ，經過50次循環后，比容量仍保持在600mahg ~ ( - 1 )以上，材料中硫的利用率為90 ，充放電效率接近100 。

To ec - based electrolyte , the presence of cs _ 2 has a very positive impact on the cyclic performance of the mcmb electrodes used . after 50 cycles , the specific capacity of the li / mcmb battery increased by 5 % compared with the capacity of the first discharge . the specific capacity of li / mcmb battery decreased by 3 % in the electrolyte without cs _ 2 對于碳酸乙烯酯基電解液,加入二硫化碳后, mcmb電極的循環性能得到改善, 50次循環, li / mcmb電池的比容量在首次放電容量的基礎上增加5 % ,而無添加劑二硫化碳的電池比容量衰減3 % ;二硫化碳加入還改善了li / mcmb電池的倍率特性。

The investigation and developing of lithium - ion batteries have attracted worldwide attention due to their excellent properties such as high cell voltage and specific capacity , and so on . remarking progress has been made on researching carbon anode materials 鋰離子電池以電壓高、比容量大等優點倍受世人關注，對鋰離子電池的碳負極材料的研究已取得較大的進展，但正極材料中因鋰鈷氧化物價高而使其應用受到限制，開發新型的正極材料已是當務之急。

When mechanical doping 5 % co , the discharge specific capacity is 225mah / g , the ratio of active material utilization is 78 % . the addition of zn can prevent the swelling of nickel electrode and prolong the cyclic life , decrease the existence of y - niooh when over - charged 隨著co摻雜量的增加，鎳電極的放電比容量明顯提高，機械混合摻雜5 co時鎳電極的放電比容量為225mah g ，活性物質的利用率達到78 ，循環性能比較穩定。

Obviously , it is better than the material prepared by solid - state process : the first discharge capacity is 91mah / g , after 20 cycles the specific capacity is around 81 . 71mah / g . besides , we tried to prepare arrays of nanowires using aao 本文還探索了利用溶膠凝膠法在模板中合成氟磷酸亞鐵鈉納米線,發現該法制備的材料初次放電容量高達119mah / g ,循環20次后的放電比容量為110mah / g 。

Experiments results showed that the doping of co can improve the electrochemical properties of nickel hydroxide and foam nickel electrode , such as discharge specific capacity , utilization of active material , cyclic performance 摻雜co可以明顯提高泡沫鎳電極的放電比容量，提高ni ( oh ) _ 2的活性物質利用率和充放電循環性能。

Though limn2o4 enjoys the advantage of low - price , easy preparation and non - toxicity to environment , yet its cycle ability not good and specific capacity low , especially capacity fading under high temperature 尖晶石limn _ 2o _ 4雖價格低廉，易于制備，合于環境，但它的容量較低，循環性較差，且高溫下容量衰減嚴重。

Lifepo4 was sintered by solid - state method , we found that the capacity of the sample which was synthesized by codeposition method exhibited high specific capacity ( 142 mah ? g - 1 ) and good cycling performance 采用高溫固相法制備了lifepo4 ,發現共沉淀制備的前驅體燒結出的材料容量達到142mah ? g - 1 ,循環性能也很好。

Elemental sulfur is a kind of most promising cathode material for the next generation lithium batteries , due to its the highest specific capacity , abundant resources , and low toxicity 單質硫因具有很高的能量密度、豐富的自然資源和環境友好等多種優勢,成為下一代鋰電池中最有發展前景的正極材料之一。

The specific capacity obtained from pumping teat generally does not reflect the water abundance of aquifer and so cannot be taken as the basis for the selection of the exploited horizon of groundwater 用抽水試驗獲得的單位涌水量一般不反映含水層的富水性，不宜依它來選擇地下水的開采層位。

It was intensively used in the field of portable computer and communications , if one doubles the specific capacity of the positive electrode , e . g . , 甥離子電池由于具有比能量高、體積小、質量輕、循環性能好而被廣泛應用于移動電話、筆記本電腦和攝象機等設備中。