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振实密度     
相关语句
  tap density
     The spherical LiFePO_4 with the tap density of 1.08 g/cm~3 was prepared by using the spherical NH_4FePO_4·H_2O as precursor.
     以球形NH4FePO4.H2O为前驱体,制备了球形LiFePO4,振实密度达1.08 g/cm3。
短句来源
     Spray-dried powder with loose density of 0.8—0.9g/cm~3. tap density of 1.0g/cm~2 and fluidity of 25—27cm~3/s. cm~2 has been prepared from the above slurry.
     这种喷雾干燥粉料的松装密度d_1为0.8—0.9g/cm~3,振实密度d_t在1.0g/cm~3上下,流动度达25—27cm~3/s·cm~2。
短句来源
     product tap density achieved 1.86g/cm3.
     产品的振实密度达到1.86g/cm3。
短句来源
     Especially the tap density ofthe graphite CPNG11 which was modified by chemical coating was increased from 0.61g/cm3 to 0.87g/cm3, the discharge capacity reached 338mAh/g and the coulombicefficiencyattained 86.4% in the first cycle.
     尤其是化学包覆的天然石墨CPNG11,其振实密度由原来的0.61g/cm3提高到0.87g/cm3,首次的放电容量达到338mAh/g,首次的循环效率达到86.4%左右。
短句来源
     g-1and low irre-versible capacity,the tap density is 2.87 g.
     g-1,振实密度高达2.87 g.
短句来源
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  tap-density
     Under the preparation conditions,when metal salt solution flow rate was 8 mL/min,stirring speed was 450 r/min,pH value was 11.5,ammonia concentration was 20 g/L and reaction time was 36 h,the spherical Ni0.8Co0.2(OH)2 powders with tap-density of 2.02 g/cm3 were obtained.
     对前驱体Ni0.8Co0.2(OH)2制备工艺进行优化,在金属盐溶液流速为8 mL/min,搅拌速率450 r/min,pH值为11.5,氨浓度20 g/L反应36 h的条件下,合成了振实密度为2.02 g/cm3的球形Ni0.8Co0.2(OH)2。
短句来源
     The lax pile-density and tap-density of the powders are as high as 1.9 g·cm-3 and 2.8 g·cm-3 respectively, which are remarkably higher than the non-spherical LiCoO2 cathode materials.
     该球形LiCoO2粉末的松装密度高达1.9 g·cm-3,振实密度高达2.8 g·cm-3,远高于一般非球形LiCoO2正极材料。
短句来源
     The product olivine LiFePO4 has high tap-density of 1.8 g/cm3 and high energy-density of 233.5 mAh/ cm3, which is remarkably higher than non-spherical LiFePO4 products.
     该球形LiFePO4粉末的振实密度高达1.8g/cm3,首次放电比容量高达233.5mAh/cm3,远高于一般非球形LiFePO_4正极材料。
短句来源
     It is shown that the product with the high tap-density of 2.3g·cm~ -3 can be prepared under relatively extensive condition via the addition of F~-in system.
     结果表明,在沉淀体系中加入F-,可以在较为宽松的条件下制备出振实密度为2·3g·cm-3的LiMn0.4Ni0.4Co0·2O2正极材料。
短句来源
     SEM show that the samples with NH4OH as a chelating agent are uniform,its particles are about 5 m,and tap-density is 2.0 g/cm3.XRD indicate that the material could be indexed by a hexagonal-NaFeO2 layer structure.
     m,振实密度为2.0g/cm3。
短句来源
更多       
  tapping density
     The synthetic technology was optimized. The tap density of the prepared non-spherical LiNi0.8Co0.2O2 powder reaches 3.15 g/cm3 and high tapping density leads to high volumetric specific capacity.
     所得非球形LiNi0.8Co0.2O2粉末振实密度高达3.15 g/cm3,大幅度地提高正极材料的体积比能量。
短句来源
     With the two feeding modes, spherical Ni(OH)2 with high tapping density (≥2.0g/cm3), high electrochemical activity (≥220mAh/g) were prepared .
     两种加料方式得到Ni(OH)_2的样品振实密度≥2.0g/cm~3、活性≥220mAh/g。
短句来源
     However, not only the tapping density of the CoOOH-coated Ni(OH)2 does not lower, but also the capacity utilization is improved.
     实验结果证明,包覆Co(OH)2虽然容量比较高,活化快,但振实密度较小。
短句来源
     Nanocomposite nickel hydroxide has higher pressing density than μm-scale spherical nickel hydroxide, although it has lower tapping density.
     通过化学沉淀法成功制备了纳米复合氢氧化镍粉体,测得纳米复合氢氧化镍粉体的振实密度低于球镍粉体,但其压实密度明显高于后者;
短句来源
     The chemically synthesized CoOOH shows a high conductivity because of its high oxidation state, as well as a high tapping density.
     研究结果表明,该方法得到的CoOOH具有更好的导电性能,样品的振实密度有了很大的提高.
短句来源
  “振实密度”译为未确定词的双语例句
     Li[Ni_(1/3)Co_(1/3)Mn_(1/3)]O_2 powers prepared by the best synthesis technics exhibit discharge capacity of 156.2mAh/g after 10 cycles.
     优化条件下,Li[Ni_(1/3)Co_(1/3)Mn_(1/3)]O_2产物颗粒均匀,其球形形貌规整,粒径大约5μm,振实密度为2.0g/cm~3; 产物经十次充放电循环后放电比容量为156.2mAh/g;
短句来源
     The results got from the experiments showed that the sample of LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 which were sintered for 18h at 850℃after a serials of pre-heat
     最优条件下合成的LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2粉末保持了原中间体形貌,仍为二次球形粒子,仅粒子的初级结构从棒形变为棱柱形,测得样品的振实密度为2.38 g·cm~(-3),接近于商业化LiCoO_2。
短句来源
     The results showed that LiFePO4 and LiFePO4/C were both simple pure phase olivine-type and the tapped density of the former could reach 1.67 g/cm3.After carbon coating,the tapped density decreased a little but had a good charge-discharge voltage plateau.
     结果表明:LiFePO4和LiFePO4/C都具有单一的橄榄石型晶体结构,且前者的振实密度可达1.67 g/cm2,掺碳后制成的LiFePO4/C振实密度有所降低,但充放电平台非常平稳。
短句来源
     The Al-Mn multi-element doped α-Ni(OH)_2 is well crystallized α-phase.
     结果表明:Al-Mn多元取代α-Ni(OH)_2为典型的α-相结构,结晶良好,振实密度可以达到1.7g/cm~3。
短句来源
     A new densification method of chemical dioxide (CMD)-NaMnO4 densification process has been developed. MnO2 by NaMnO4 oxidation is crystal of γ-type structure.
     开发了用NaMnO4对化学MnO2重质化的新方法.研究表明:用NaMnO4氧化Mn2+得到的MnO2具有γ晶型结构,重质后MnO2的振实密度可以从1,2提高到2.0g/cm3;
短句来源
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  tap density
After the crude MnO2 was densified, the tap density of the MnO2 powder could be increased from 1.2 to 2.0 g/cm3.
      
Preparation of spherical cobalt carbonate powder with high tap density
      
Spherical cobalt carbonate with high tap density, good crystallization and uniform particle size was prepared by controlled chemical crystal method using cobalt chloride and ammonium bicarbonate as cobalt source and precipitator.
      
The results show that the key factors influencing the preparation process of spherical cobalt carbonate with high tap density and good crystallization are how to control pH value (7.25 ± 0.05) and keep some reaction time (about 10 h).
      
The results show that as the decomposition temperature increases, the as-obtained Co4O3 products with porous structure transform into polyhedral structure with glazed surface, and simultaneously the cobalt content and tap density increase.
      
更多          
  tap-density
Al, B and F doped compounds showed both improved physical and electrochemical properties, high tap-density, and delivered a reversible capacity of 190?mAh/g with excellent capacity retention even when the electrodes were cycled between 3.0 and 4.7?V.
      
The tap-density of the LiNi1/2Mn1/2O2 powders was approximately 2.2 g cm-3, which is comparable to the tap-density of commercial LiCoO2.
      
  tapping density
Studies indicated that the filling property and flowability of nanostructured β-Ni(OH)2, which were characterized by the measurements of tapping density and angle of repose, were inferior to those of spherical β-Ni(OH)2.
      
  其他


Spray drying as a method for preparing β″-Al_2O_3 powders has been investigated. A kind of spray drying technique using for Al_2O_3-LiOH.NaOH solution slurry was selected after compared the properties of several spray-dried powders prepared by different approches. The relative viscosity of this water based alkaline slurry containing about 45wt% Al_2O_3 can be lowered to a value less than 2 by adding 0.25wt% lignosulfonates or 0.5 wt% gum arabic. Spray-dried powder with loose density of 0.8—0.9g/cm~3. tap density...

Spray drying as a method for preparing β″-Al_2O_3 powders has been investigated. A kind of spray drying technique using for Al_2O_3-LiOH.NaOH solution slurry was selected after compared the properties of several spray-dried powders prepared by different approches. The relative viscosity of this water based alkaline slurry containing about 45wt% Al_2O_3 can be lowered to a value less than 2 by adding 0.25wt% lignosulfonates or 0.5 wt% gum arabic. Spray-dried powder with loose density of 0.8—0.9g/cm~3. tap density of 1.0g/cm~2 and fluidity of 25—27cm~3/s.cm~2 has been prepared from the above slurry. Without calcination, this kind of powder can be isostatically pressed and then sintered to a density of 3.21g/cm~2. The Na ion resistivity of the sintered sample is 6—7Ω·cm st 300℃. Spray-dried powders using other salts as alkali sources have to be calcinated before pressing to obtain a higher fired density

研究了制备β″-Al_2O_3陶瓷粉料的喷雾干燥工艺,选择了Al_2O_3-LiOH·NaOH水溶液泥浆的喷雾干燥工艺。仅0.25wt%的木质素磺酸盐或0.5wt%的阿拉伯胶,即可使Al_2O_3含量达45wt%左右的泥浆的相对粘度降至2以下。这种喷雾干燥粉料的松装密度d_1为0.8—0.9g/cm~3,振实密度d_t在1.0g/cm~3上下,流动度达25—27cm~3/s·cm~2。直接用这种粉料压坯,可制出烧结密度高于3.21g/cm~3,300℃电阻率6—7Ω·cm的β″-Al_2O_3陶瓷管。其它碱源的粉料则须经煅烧后再压坯方能烧结到较高的密度。

The high density, high activity, and spherical nickel hydroxide was prepared with the “controlled neutralization hydrolysis” method. The effects of pH values, additives, and the amount of added ammonia on the tap density and the electrical activity of the prepared Ni(OH) 2 are discussed. By the method described in this paper, tap density higher than 2.0g/cm 3 and specific surface area 15~20m 2/g are achieved. The crystallization of nickel hydroxide can be improved by adding ammonia; the multi additives...

The high density, high activity, and spherical nickel hydroxide was prepared with the “controlled neutralization hydrolysis” method. The effects of pH values, additives, and the amount of added ammonia on the tap density and the electrical activity of the prepared Ni(OH) 2 are discussed. By the method described in this paper, tap density higher than 2.0g/cm 3 and specific surface area 15~20m 2/g are achieved. The crystallization of nickel hydroxide can be improved by adding ammonia; the multi additives are more effective to improve the activity of nickel hydroxide than single additive. The specific capacity of the electrode with nickel hydroxide prepared is showed to be greater than 260mAh/g. It is suitable for using as positive active material in Ni MH batteries.

采用“受控中和水解法”进行了金属氢化物-镍电池用的高密度高比容量球形Ni(OH)2的制备研究,讨论了pH值、添加剂、加氨量等操作条件对Ni(OH)2堆积密度及电活性等性能的影响。实验结果表明:用本文论述的方法可以制得高密度高比容量球形Ni(OH)2颗粒,振实密度在2.0g/cm3以上,比表面积在15~20m2/g。添加氨水后可以改变Ni(OH)2的结晶程度,采用复合添加剂比单一添加剂更能有效地提高Ni(OH)2的活性和改善镍电极的性能。使用该Ni(OH)2作为活性物质的电极,其容量可达到260mAh/g。这种Ni(OH)2特别适合于用作金属氢化物-镍电池的正极活性材料。

The relationships of the power input into the reaction system of spherical nickel hydroxide vs. the tapping density and the BET specific area as well as density vs. activity were studied. The experimental results show that when the full width of the half maximum intensity (FWHM) of the XRD patterns in (001) and (101) lines are more than 0.75° and 0.85° respectively while the power input into the reaction system of nickel hydroxide is 12—25...

The relationships of the power input into the reaction system of spherical nickel hydroxide vs. the tapping density and the BET specific area as well as density vs. activity were studied. The experimental results show that when the full width of the half maximum intensity (FWHM) of the XRD patterns in (001) and (101) lines are more than 0.75° and 0.85° respectively while the power input into the reaction system of nickel hydroxide is 12—25 Wh·L -1, the tapping density and the discharge specific capacity of the nickel hydroxide are more than 2.1 g·cm -3 and 280 mAh·g -1 respectively. The BET specific area decreases with the increasing of the power input into the reaction system. When the BET specific area is less than 7.0 m 2·g -1, the discharge specific capacity of the nickel hydroxide decreases evidently.

研究了球形氢氧化镍的密度与活性 ,反应体系的输入能量与密度、比表面积的关系。结果表明 ,在氢氧化镍晶体的( 0 0 1)和 ( 10 1)面的X光衍射峰半高宽分别大于 0 .75°和 0 .85°的情况下 ,当输入到反应体系内的搅拌能量为 12~ 2 5Wh·L- 1 时 ,产品具有较高的密度 (振实密度 >2 .1g·cm- 3)和较高的活性 (比容量 >2 80mAh·g- 1 ) ,产品的BET比表面积随输入能量的增加而减小 ,当BET比表面积小于 7m2 ·g- 1 以后 ,产品活性明显下降。

 
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