Abstract: A lithium ion secondary battery includes a positive electrode plate including a positive electrode material and a negative electrode plate including a negative electrode material. An isolation membrane and an electrolyte are also included. A Prussian Blue analogue additive is in at least one of the positive electrode plate, the negative electrode plate, and the electrolyte. When the additive is included, the additive respectively has a mass percentage of about 0.5% to about 5% of a total mass of the positive electrode material or of the negative electrode material, or of the electrolyte.

Abstract: A method for preparing cathode slurry of a lithium ion battery, includes: providing an cathode active substance; providing a conductive agent including carbon nanomaterials, agitating and dispersing the conductive agent in a dispersant to obtain a conductive agent suspension; providing a glue solution and dividing the glue solution into three parts; premixing and agitating the conductive agent suspension and a first part of the glue solution with the cathode active substance, to obtain a primary slurry; mixing and agitating a second part of the glue solution in the primary slurry, to obtain a secondary slurry; and mixing and agitating a third part of the glue solution in the secondary slurry, to obtain an cathode slurry of a lithium ion battery.

Abstract: A lithium ion battery diaphragm includes a film and a ceramic layer, the ceramic layer is formed on at least one surface of the film to form a structure in the shape of a grid on the at least one surface of the film. A method for manufacturing the lithium ion battery diaphragm is also provided.

Abstract: A low clock feed through charge pump circuit applied in a phase includes a first pump transistor, a second pump transistor, a first switch device, a second switch device, a third switch device, a fourth switch device, a first wide-swing current mirror circuit and a second wide-swing current mirror circuit. Each of the first and second wide-swing current mirror circuits consists of four cascode transistor circuits and a bias circuit for providing a bias required by the low clock feed through charge pump circuit. The transistors forming the four switch devices and the four cascode transistor circuits operates in the saturation region. With the low clock through charge pump circuit, charge injection and jitter can be reduced.