摘要：【中文】本发明提供了一种用于评价电极混合物浆料的相稳定性的方法，所述方法包括如下步骤：(S1)将电极混合物浆料引入流变仪；(S2)对所述电极混合物浆料施用第一剪切速率；(S3)在施用所述第一剪切速率之后，施用第二剪切速率，其中所述第二剪切速率高于所述第一剪切速率；(S4)在施用所述第二剪切速率之后，施用第三剪切速率，其中所述第三剪切速率与所述第一剪切速率相同；以及(S5)对所述第一剪切速率下的剪切粘度和所述第三剪切速率下的剪切粘度进行比较。本发明还提供了一种用于评价电极混合物浆料的相稳定性的设备。 【EN】The present invention provides a method for evaluating phase stability of an electrode mixture slurry, the method comprising the steps of: (S1) introducing the electrode mixture slurry into a rheometer; (S2) applying a first shear rate to the electrode mixture slurry; (S3) applying a second shear rate after applying the first shear rate, wherein the second shear rate is higher than the first shear rate; (S4) applying a third shear rate after applying the second shear rate, wherein the third shear rate is the same as the first shear rate; and (S5) comparing the shear viscosity at the first shear rate and the shear viscosity at the third shear rate. The invention also provides an apparatus for evaluating the phase stability of an electrode mixture slurry.

摘要：【中文】本发明公开了一种负极和包含所述负极的锂二次电池，所述负极包含：负极用集电器；第一负极活性材料层，所述第一负极活性材料层位于所述负极用集电器的至少一个表面上并包含碳质活性材料；和第二负极活性材料层，所述第二负极活性材料层位于所述第一负极活性材料层上并包含硅类活性材料和碳纳米管。 【EN】Disclosed are a negative electrode and a lithium secondary battery including the same, the negative electrode including: a current collector for a negative electrode; a first anode active material layer located on at least one surface of the current collector for an anode and including a carbonaceous active material; and a second negative electrode active material layer on the first negative electrode active material layer and including a silicon-based active material and carbon nanotubes.