( 4 ) the active material is small in the biomass , but it participates in almost all biochemical reaction . meanwhile the experiment shows that the activity of biofilm is lower in low temperature than in normal temperature ( 4 )生物膜中的活性物质虽然在生物膜总量中的比例很小，但是正是这些活性物质担负着所有生物化学反应进行的任务，试验表明低温时生物膜的活性较常温低很多。
Lithium manganese oxides have advantages as the positive active materials for lithium - ion batteries , such as non - toxicity , low cost etc . however , the capacity fade of lithium manganese oxides makes its application difficulty 锂锰氧化物由于具有污染低,价格便宜等优点,己经成为最有吸引力的锂离子电池的正极材料。但其容量衰减、循环寿命短等问题,成为困扰它商品化应用的主要障碍。
Before bottle , the product adopt the device of membrane separation which is to utilize nano technology reach super filtration level , the clear liquid filtered is asepsis , it protect active material and various kinds of amino acid of products not to be decreased 本品在灌装前采用的膜分离装置，是利用纳米技术达到超滤水平，它所过滤出的清液是无菌的，从而保护了产品中的活性物质和各种氨基酸不受损失；
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 随着co掺杂量的增加，镍电极的放电比容量明显提高，机械混合掺杂5 co时镍电极的放电比容量为225mah g ，活性物质的利用率达到78 ，循环性能比较稳定。
Active carbon could effectively inhibit the reaction products ? polysulfides dissolving into electrolyte for its strong absorbability arising from very large surface area . so li / s batteries show good cyclability with high utilization of the active materials 活性炭具有巨大的比表面积和强大的吸附能力，能够有效地阻止硫的还原产物?聚硫化合物溶解到电解质中，从整体上提高了硫电极活性物质的利用率，并改善了电池的循环性能。
The utilization of lead acid battery active material is universally very low though its technology has reached the maturation . especially , the utilization of positive active material is much worse . and the performance of the positive pole decides the whole battery performance 虽然铅酸电池的技术已经比较成熟，但普遍存在活性物质利用率比较低的问题，特别是正极活性物质的利用率更是不理想，正极的性能决定着整个电池的性能。
The result indicates , due to the increment of porosity and strength , and the enlargement of pore diameter and the decrement of the resistance of zn electrode made by casting , the usage factor of the active material of zn electrode and the capacity in factor of the zn electrode were increased 指出：由于采用铸造法可提高电极的孔隙率、强度、增大电极的孔径、降低电极的内阻，从而使得电极的活性物质利用率，电极的实际比容量得以极大的提高。
The preparation and electrochemical performance of nickel hydroxide as a positive active material for the high capacity mh / ni alkaline rechargeable batteries were studied . the research result in this paper has some significance for the further development of nickel electrode with good properties 本文对镍氢( mh / ni )碱性二次电池中所普遍使用的正极活性物质ni ( oh ) _ 2的制备和电化学行为进行了研究，对于进一步研制和开发综合性能优良的镍电极具有一定的实际意义。
With a study in depth on the charging process the author reached the following understanding : the ideal charging current at a specific moment is dependent on the amount of active material on the battery plates and the reactive environment , that is to say , the charging current should follow a j . a . mas proposed acceptable curve or optimal curve ; the polarization is unavoidable but controllable in charging and discharging 笔者主持的原煤炭部优秀青年基金项目《轻型智能充电装置研究》即代表这种关注。笔者通过对充电过程的分析得到如下理解： -任何时刻的理想充电电流取决于当时极板上的活性物质的多少及其周围反应环境，充电电流的变化应遵循马斯( j
It was also found that the discharge capacity of agcuo _ 2 modified by cnts at different discharge rate increased due to the decrease of the intrinsic resistance and pseudo - charge transfer resistance of active materials as obtained by electrochemical impedance spectra . at last , agcuo _ 2 / tio _ 2 nanotubes composite was prepared and its electrochemical 最后利用化学沉淀法制备了agcuo _ 2 / tio _ 2纳米管复合材料,对其电化学性能进行研究,结果表明, tio _ 2纳米管的掺杂明显改善了agcuo _ 2的放电性能。
