Non-aqueous electrolyte secondary battery, battery pack, and automobile
A non-aqueous electrolyte and secondary battery technology, which is applied in secondary batteries, electric vehicles, battery electrodes, etc., can solve the problems of low thermal stability of lithium-nickel composite oxides and reduced battery safety, and achieve high energy density, The effect of high security
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 Embodiment approach
[0083] The non-aqueous electrolyte secondary battery according to the first embodiment of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator interposed between the positive and negative electrodes. An electrode composed of a negative electrode, a positive electrode, and a separator is assembled in an outer packaging material, and a nonaqueous electrolyte is contained in at least the electrode group.
[0084] Hereinafter, the positive electrode, the negative electrode, the nonaqueous electrolyte, the separator, and the packaging material will be described in detail.
[0085] 1) Positive electrode
[0086] The positive electrode has a positive electrode current collector and a positive electrode layer formed on one or both surfaces of the positive electrode current collector and containing a positive electrode active material, a conductive agent, and a binder.
[0087] The positive electrode active material cont...
no. 2 Embodiment approach
[0148] A battery pack according to a second embodiment of the present invention includes one or more nonaqueous electrolyte batteries according to the first embodiment as unit cells. When a plurality of single cells are provided, they are electrically connected in series or in parallel to form a battery pack.
[0149] For an example of the battery pack of the second embodiment, refer to Figure 4 and Figure 5 Be explained.
[0150] Figure 4 It is an exploded perspective view of the battery pack of the second embodiment.
[0151] Such as Figure 4 As shown, a plurality of (for example, eight) flat single cells 41 are stacked in the thickness direction to form a rectangular parallelepiped battery stack 40 , that is, a battery pack. As described above, each single cell 41 has the positive terminal 33 and the negative terminal 34 connected to the positive electrode and the negative electrode, respectively, drawn out to the outside of the packaging material. The printed wir...
no. 3 Embodiment approach
[0162] The automobile of the third embodiment includes the battery pack of the second embodiment. The car mentioned here includes two-wheel to four-wheel hybrid electric cars, two-wheel to four-wheel electric cars, assist bicycles, and the like.
[0163] Figure 6-8 A hybrid car that combines an internal combustion engine and a battery-driven electric motor as a driving power source. For the driving force of an automobile, a power source with a wide range of rotation speed and torque is required according to its driving conditions. In general, since the torque and rotational speed representing the ideal energy efficiency of the internal combustion engine are limited, the energy efficiency decreases under other operating conditions. Hybrid vehicles are characterized by improving the overall energy efficiency of the vehicle by running the internal combustion engine under optimal conditions to generate electricity while using a high-efficiency electric motor to drive the wheels...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| face spacing | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More