| 1. | The capacity fading during cycling or with storage at high temperature is primarily the result of mn dissolution in electrolyte 。在空气气氛中合成只能得到尖晶石结构的limnzo 。和岩盐结构的li 。 |
| 2. | Especially during cycles of high inflation , investors try to purchase tangibles that will at least retain their current market values 尤其是在高通胀的时候,投资者们尽量够买至少能够抱持现有市场价值的有形资产。 |
| 3. | Especially during cycles of high inflation , investors try to purchase tangibles that will at least retain their current market values 特别是在高通货膨胀期,投资者试图通过购买有形物品以保持至少是当前的市场价值。 |
| 4. | Especially during cycles of high inflation , investors try to purchase tangibles that will at least retain their current market values 尤其在高通货膨胀时期,投资者尽量购买那些至少会保持他们现有市场价值的有形资产。 |
| 5. | Especially during cycles of high inflation , investors try to purchase tangibles that will at least retain their current market values 特别是在通货膨胀时期,投资者尝试购买实实在在的物品,将来至少还能保住现有的市场价值。 |
| 6. | Study shows that these petrophysical parameters will change with pressures , of which rock porosity will affect other parameters ' variations , and permeability has lag - effect during cycling , rising and declining of the pressure 研究表明,岩石物性参数随压力的变化而变化;岩石孔隙度不同,其他参数变化规律不同;渗透率随压力循环升降存在滞后效应。 |
| 7. | A significant suppression of phase transitions and lattice changes during cycling is occurred for ti - doped materials , and a decrease of interface reaction activity between the cathode and electrolyte is also demonstrated for ti - doped cathodes . as a result , the capacity losses , which are originated from structural changes and interface reactions during cycling , decrease and thereby cycling life increases for ti - doped materials 掺钦后,电极材料的离子分布形式发生变化,引起材料结构中的化学键产生变化,电极材料充放电过程中的结构相变得到有效抑制,结构变化相应减小,电极材料在高电位下的界面反应活性也减弱,从而减小了由结构变化和界面反应引起的容量损失,改善了电极材料的充放电循环性能。 |
| 8. | The structure and cycling properties of o2 - type products were studied too . the results proved that the material remained layered and did not transform to the spinal structure during cycling when it was cycled in 2 . 2 - 4 . 2v , it occurred irreversible phase transformation only when it further discharged to 1 . 0v . the granularity , shape and density of the grain were also studied 本论文对合成的o2相材料进行了结构和循环过程研究,结果表明具有o2相结构的材料在2 . 2 - 4 . 2v之间循环时不发生相变,即使在循环10次后仍能够保持稳定的o2相层状结构,只有当电极放电至1 . 0v以下时,才会发生不可逆相变。 |
| 9. | The significant capacity loss of the spinel limn2o4 during cycling hereby prevents its wider use as cathode materials for lithium secondary batteries . there are two main factors resulting in fading capacity and poor cyclability , one is the jahn - teller distortion of mn3 + , and the other is mn dissolution to electrolyte . the main objects of this paper are to resolved these key problems effecting on the performance of batteries 针对limn _ 2o _ 4正极材料在电化学循环过程中发生jahn - teller畸变和mn在电解液中溶解这两个导致容量衰减和循环性能劣化的关键问题,分别采用阴阳离子复合掺杂和尖晶石晶粒表面包裹两种措施,对尖晶石结构limn _ 2o _ 4正极材料进行了改性研究。 |