离子迁移数
- 网络transference number;ionic transference number;transference number of ion;ion transport number
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表观活化能(Eα)与指前因子(A)随着离子迁移数t(Li)~+的变化而作相应的变化。
The pseudo activation energies ( Ea ) and the pre-exponent constant ( ^ 4 ) changed with the variation of ion transference number ( f / / ) .
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体系电化学窗口达到10V,锂离子迁移数随着侧链链长的增加略有增加。
The phosphate-type polymer electrolyte is stable up to 10V and lithium ion transference number increases a little appreciably with the side chain length increases .
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NaBr在乙醇-水体系中298.15K下的离子迁移数
Determination of transference numbers of NaBr in mixtures of H 2O EtOH at 298.15K
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从提高锂蓄电池聚环氧乙烷(PEO)基全固态聚合物电解质的电导率、锂离子迁移数和改善电解质与锂电极之间的界面稳定性三个方面介绍了其研究进展。
Research on PEO-based dry solid polymer electrolytes for rechargeable lithium batteries was introduced from three aspects which were improving the conductivity , enhancing the number of lithium ion transference and modifying the stability of electrolyte / lithium metal electrode interface .
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其次,利用电化学方法详细研究了氧化铝和二氧化钛纳米粒子对MCPE中Li+离子迁移数的影响。
Second , the effect of nanoparticles on the Li + ions transference numbers of MCPE was studied in detail by electrochemical technology .
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结果表明,在600~1000℃下干燥空气中,陶瓷样品的最大电导率为0.026S·cm-1,氧离子迁移数为0.03~0.2,是一个氧离子与空穴的混合导体;
The results indicate that the sample is a mixed conductor of oxide-ion and hole with the maximal conductivity of 0.026 S · cm - 1 and the oxide-ionic transport numbers of 0.03 ~ 0.2 in dry air .
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结果表明,该陶瓷样品在600-1000℃下氧离子迁移数为1,氧离子电导率的最大值为3.2×100-2S·cm-1,是一个优良的氧离子导体;
The maximal conductivity of the ceramic is 3.2 × 10-2S · cm-1 in O2 at 1000 ℃ . The conduction in the ceramic are pure oxide-ionic with oxide-ionic transport number of 1 over the whole temperature range of 600-1000 ℃ .
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氧离子迁移数通过实测电动势与利用Nernst方程导出的理论电动势的比值来确定,在测量温度范围内氧离子迁移数都大于0.96,样品以离子导电为主。
The ionic transference number of the oxygen ions is evaluated as the ration of the measured electromotive force to the theoretical value calculated by the Nernst equation . The ionic transport number is higher than 0.96 , indicating that the dominant carrier is the oxygen ion .
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界面移动法测定离子迁移数实验数据处理方法的改进
Improvement to measure transference number of ions by moving boundary method
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聚合物电解质离子迁移数的测定方法
The Progress of Measurement of Transference Number in Solid Polymer Electrolyte
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希托夫离子迁移数测定仪的改进
Improvement of Hittorf 's Apparatus for Ion Transference Number
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随着温度的升高,其氧离子迁移数和离子导电区域都轻微增大。
With increasing temperature , the ionic transference number and the ionic conduction region slightly increase .
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本文介绍一种希多夫法测定离子迁移数的恒电流源.它具有较高的稳流效果,使得测定电量的方法变得十分简便。
This paper discusses the constant current source for determination of transference numbers with Hittorf method .
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建立了一套电动势法测量电解质溶液中离子迁移数的实验装置。
A set of equipment was established for determining the transference numbers of electrolyte solutions by EMF method .
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建立了放射性示踪原子法和膜浓差电位法测定钠离子迁移数。
A radiotraler method and a membrane concentration potential method were established to determine the sodium ion transport numbers .
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对于实验中选用的2.18%氧化镁部分稳定的氧化锆试样在1683K空气条件下,氧离子迁移数等于1,在碳饱和铁液条件下,氧离子迁移数较小。
The oxygen ion transference number for zirconia sample in the experiment is 1 in air at 1 683 K and is smaller in carbon saturated iron melt .
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氧浓差电池的结果表明,各烧结体样品在600~1000℃范围氧离子迁移数为1,是纯的氧离子导体;
The results show that these sinters are almost pure oxygen conductors with oxide-ionic transport number of 1 in oxygen concentration cell over the temperature range of 600 ~ 1000 ℃ .
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结果表明,氧浓差电池电动势的实测值与理论值吻合得很好,氧离子迁移数为1,表明该陶瓷样品在该温度下氧气气氛中为一纯氧离子导体;
The observed values of oxygen concentration cell coincided with theoretical ones perfectly , in - dicating that the conduction in the ceramics was purely oxide-ionic with oxygen ion transference number of 1 under oxygen atmosphere over the whole temperature range of 600 ~ 1000 ℃ .
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采用双管式测量装置测定离子的迁移数,不仅使用简便,而且测定结果准确性较高,能满足实验要求。
The determination of ion transference number by two tube apparatus not only is easy , but also has accurate results and it can satisfy experiment requirement .
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本文提出了在电解质水溶液中离子电导、离子淌度,离子迁移数与真实离子半径成正比关系。
The paper describes that ion 's conductance , mobility and transference number in electrolyte aqueous solution are proportional to its actual ion 's radius .
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对聚合物电解质(PE)的研究主要包括两个方面:第一,在保持聚合物电解质机械强度的前提下提高其室温离子迁移性(包括离子电导率和锂离子迁移数);
It mainly includes two aspects for the research of polymer electrolyte ( PE ): First is the enhancement of self-performance , i.e. , improving the ability of ion transfer ( including ionic conductivity and Li + transference number ) at room temperature in the case of good mechanical strength ;
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在模式耦合理论推导的低浓度时离子摩尔电导率与离子浓度的关系式中,引入离子迁移数,提出了求离子极限摩尔电导率的新方法。
The ion transfer number is introduced in the formula describing the relationship between ionic limiting molar conductivity and ionic concentration based on mode coupling theory ( MCT ) .
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利用固体电解质作隔膜的有氧离子迁移的浓差电池Ⅱ和无氧离子迁移的复合浓差电池Ⅰ的电动势的测定结果推测了冰晶石-氧化铝熔体中氧离子迁移数。
The transference number of oxygen ion in cryolite-alumina melts was mea -
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本文通过水解缩合、自由基聚合和离子交换法合成了核壳结构的单离子导体SiO2@Li+,并将其加入到聚合物基体PVDF-HFP中以改善所制备复合聚合物电解质组装电池体系的锂离子迁移数。
SiO2 @ Li + was then added into the polymer matrix PVDF-HFP to enhance the lithium ion transfer number of the batteries assembled with the as-prepared composite polymer electrolytes .