Latest Publications & Patents on Solid-State Batteries

Developed in 1950 by Vitaly Ginzburg and Lev Landau, this is a phenomenological theory that describes superconductivity near the phase transition. It introduces a complex order parameter, [latex]\Psi[/latex], to represent the density of superconducting electrons. The theory successfully describes effects like the Meissner effect and predicts the distinction between Type I and Type II superconductors based on a single parameter, [latex]\kappa[/latex].

The maximum theoretical efficiency of a fuel cell is governed by the ratio of the change in Gibbs free energy ([latex]\Delta G[/latex]) to the change in enthalpy ([latex]\Delta H[/latex]) of the electrochemical reaction. This is expressed as [latex]\eta_{thermo} = \frac{\Delta G}{\Delta H}[/latex]. Crucially, fuel cells are not heat engines and are therefore not constrained by the Carnot efficiency limit, allowing for significantly higher theoretical conversion efficiencies.

双电层电容器 (EDLC)，又称超级电容器，通过极化电解液以静电方式储存能量。与传统电池不同，它不涉及任何化学反应。它将能量储存在高表面积电极与电解质界面处形成的双电层（亥姆霍兹双层）中。这使得充电和放电速度极快，循环寿命也极长。

Theoretically predicted by Alexei Abrikosov in 1957 based on Ginzburg-Landau theory, Type II superconductors are characterized by two critical magnetic fields, [latex]H_{c1}[/latex] and [latex]H_{c2}[/latex]. Between these fields, they enter a mixed or "vortex" state, allowing partial magnetic field penetration through quantized flux tubes called Abrikosov vortices. This allows them to remain superconducting in much higher magnetic fields than Type I superconductors.

现代数字电子技术的基本组成部分是晶体管，特别是 MOSFET（金属氧化物半导体场效应晶体管）。它的作用类似于电子控制开关。通过在其栅极施加电压，可以控制其源极和漏极之间的电流流动，从而实现逻辑门。

重复性评估在相同条件下的精密度，而再现性评估在一个或多个条件（例如操作员、仪器或位置）发生变化时的精密度。再现性方差始终大于或等于重复性方差。这种区别对于理解测量变异性至关重要，尤其是在条件本质上不同的实验室间比较中。

热喷枪的温度可达3500摄氏度至4500摄氏度，远远超过传统喷枪。这种高温不仅能熔化目标材料，其喷射的纯氧还能快速氧化材料本身，使其成为燃料源的一部分。这种熔化和燃烧的结合作用使其能够切割厚钢板、混凝土和岩石。

PUREX 是“钚和铀提取回收”的缩写，是乏核燃料后处理的主要工业方法。它采用液-液萃取 (LLE) 技术，将铀和钚从高放射性裂变产物中分离出来。该工艺使用浓度为 30% 的磷酸三丁酯 (TBP) 溶液（溶于烃类稀释剂）从硝酸原料中选择性萃取铀 (VI) 和钚 (IV)。

“吨TNT”是用于量化大量能量释放（尤其是爆炸释放）的能量单位。国际协议通常将其定义为4.184吉焦耳（GJ）。该值基于TNT爆炸时的能量密度计算得出，约为4184焦耳/克。它被用作比较核武器和其他爆炸事件当量的标准参考。

粒子数反转是指原子或分子系统中处于较高激发态的粒子数多于处于较低激发态的粒子数的一种状态。这种非平衡状态是受激辐射光放大的先决条件。如果没有粒子数反转，吸收将占主导地位，无法获得净增益，激光作用也就无法实现。

Developed in 1957 by John Bardeen, Leon Cooper, and Robert Schrieffer, the BCS theory provides a microscopic explanation for conventional superconductivity. It posits that below the critical temperature ([latex]T_c[/latex]), electrons can overcome their electrostatic repulsion and form bound pairs, called Cooper pairs, through interactions with the crystal lattice (phonons). These pairs behave as bosons and can condense into a single macroscopic quantum state.

光学谐振腔，或称光学谐振器，是由一系列反射镜组成的结构，能够形成光波驻波腔。在激光器中，它环绕着增益介质，提供正反馈。受激辐射产生的光在谐振腔内来回反射，多次穿过增益介质，从而实现显著的光放大，并最终形成相干输出光束。

The Deborah number is a dimensionless quantity in rheology, used to characterize the fluidity of materials. It is the ratio of the relaxation time, which is an intrinsic property of the material, to the characteristic time scale of the experiment or observation. The formula is [latex]De = \frac{t_c}{t_p}[/latex], where [latex]t_c[/latex] is the relaxation time and [latex]t_p[/latex] is the observation time.

Mean Time Between Failures (MTBF) is a reliability metric representing the predicted elapsed time between inherent failures of a repairable system. For systems with a constant failure rate [latex]\lambda[/latex], MTBF is its reciprocal: [latex]MTBF = 1/\lambda[/latex]. This simple relationship is fundamental in reliability engineering for predicting system uptime and planning maintenance schedules, assuming failures follow an exponential distribution.