Novel safe iron energy storage battery

Abstract

The invention discloses a novel safe iron body energy storage battery which comprises an aluminum sheet and a copper sheet located above the aluminum sheet, a plurality of aluminum wires are welded to the top of the aluminum sheet, a plurality of copper wires are welded to the bottom of the copper sheet, an energy storage material is arranged between the aluminum sheet and the copper sheet, and iron body ferroferric oxide aerogel is adopted as the energy storage material. Carbon nanotubes or graphite is added into the ferruginous ferroferric oxide aerogel; a cathode is arranged at the bottom of the aluminum sheet, an anode is arranged at the top of the copper sheet, and a PTC sheet is welded on the anode. The energy storage battery has the characteristics of low cost, safety and high capacity.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery technology, specifically to a novel and safe ferroelectric energy storage battery. Background Technology

[0002] The most common energy storage batteries on the market today are ternary lithium batteries and lithium iron phosphate batteries. They are installed in automobiles as energy storage batteries and power batteries, as energy storage batteries for solar photovoltaic panels, and as energy storage batteries for the power grid, storing off-peak electricity and releasing it during peak electricity demand.

[0003] The raw materials for existing ternary lithium batteries and lithium iron phosphate batteries are expensive. Mining costs affect the price of raw materials, and when prices fluctuate greatly, production costs are difficult to control. Due to limitations in production technology, ternary lithium batteries and lithium iron phosphate batteries only have a capacity of 120Wh to 170Wh, which is small. As power batteries for automobiles, the larger the battery's capacity, the heavier it is, and the more limited the vehicle's driving range becomes. In terms of production technology, ternary lithium batteries and lithium iron phosphate batteries are liquid batteries, which often experience short circuits during use, leading to combustion and explosion accidents, causing vehicle damage and huge property losses. Summary of the Invention

[0004] The purpose of this invention is to provide a novel and safe ferroelectric energy storage battery to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel and safe ferroelectric energy storage battery, comprising an aluminum sheet and a copper sheet located above the aluminum sheet, wherein a plurality of aluminum wires are welded to the top of the aluminum sheet and a plurality of copper wires are welded to the bottom of the copper sheet, and an energy storage material is disposed between the aluminum sheet and the copper sheet, wherein the energy storage material is a ferroelectric magnetite aerogel, and carbon nanotubes or graphite are added to the ferroelectric magnetite aerogel.

[0006] The bottom of the aluminum sheet has a negative electrode, and the top of the copper sheet has a positive electrode, with a PTC sheet welded onto the positive electrode.

[0007] Preferably, the ferromagnetic tetroxide aerogel is prepared by spinel-type ferrite to form a ferrite aerogel, and the prepared ferrite aerogel is processed by a demagnetizer.

[0008] Preferably, carbon nanotubes or graphite are added to the ferrous iron oxide aerogel, stirred evenly, and then pressed with a forging press.

[0009] A novel and safe ferroelectric energy storage battery includes the following preparation steps:

[0010] Step S1: Select spinel-type ferrite and prepare ferrogel by supercritical gel drying method. Demagnetize the prepared ferrogel by demagnetizing machine.

[0011] Step S2: Add carbon nanotubes or graphite to the demagnetized ferrogel and stir until homogeneous;

[0012] Step S3: Insert several copper wires and aluminum wires into the top and bottom of the ferroaerogel, respectively. Then, use a forging hydraulic press to forge the ferroaerogel and carbon nanotubes or graphite into a solid brick-shaped solid.

[0013] Step S4: Weld the copper wire and aluminum wire to the copper sheet and aluminum sheet respectively, and connect the positive electrode to the copper sheet and the negative electrode to the aluminum sheet. At the same time, weld the PTC sheet to the positive electrode to form a battery pack.

[0014] Step S5: Cover the forged battery pack with 3-4 layers of PE film for sealing.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Ferrous aerogel is an aerogel of ferrous material produced by spinel-type ferrite. After demagnetization, the demagnetized ferrous material forms a high-capacity battery pack.

[0017] 2. The price of iron-based aerogels is one-third that of ternary lithium or lithium iron phosphate materials, making them low-cost.

[0018] 3. Carbon nanotubes or nanoscale graphite are added to the ferrogel as conductive materials, and the battery pack is compacted by a forging hydraulic press, making it firm and not loose.

[0019] 4. PTC material is connected to the positive terminal of the battery to effectively ensure that the battery pack will not explode or burn. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the energy storage battery manufacturing process of the present invention.

[0022] In the diagram: 1. Aluminum sheet; 2. Copper sheet; 3. Aluminum wire; 4. Copper wire; 5. Energy storage material; 6. Negative electrode; 7. Positive electrode; 8. PTC sheet. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1 The present invention provides a technical solution: a novel and safe ferroelectric energy storage battery, comprising an aluminum sheet 1 and a copper sheet 2 located above the aluminum sheet 1. A plurality of aluminum wires 3 are welded to the top of the aluminum sheet 1, and a plurality of copper wires 4 are welded to the bottom of the copper sheet 2. An energy storage material 5 is disposed between the aluminum sheet 1 and the copper sheet 2, and the energy storage material 5 is a ferroelectric magnetite aerogel, wherein carbon nanotubes or graphite are added to the ferroelectric magnetite aerogel.

[0025] The bottom of the aluminum sheet 1 is provided with a negative electrode 6, and the top of the copper sheet 2 is provided with a positive electrode 7. A PTC sheet 8 is welded to the positive electrode 7, and PTC material is connected to the positive electrode. When the temperature rises, the resistance increases, and the circuit connection is broken, which is equivalent to installing a safety lock for the battery. With such a safety lock, the battery will not burn or explode. The Curie temperature of the PTC material is designed to be 120°C. When the temperature exceeds 120°C, the resistance of the PTC will increase by several hundred times, forming a short circuit.

[0026] The Curie temperature of the PTC used in the iron-based energy storage battery of this invention is designed to be 75°C. After multiple tests, 75°C is the most suitable Curie temperature.

[0027] In this invention, the iron-based magnetite aerogel is prepared by spinel-type ferrite to form a ferrite aerogel. The prepared aerogel has the characteristics of high porosity and high specific surface area. The prepared ferrite aerogel is processed by a demagnetizer.

[0028] In this invention, carbon nanotubes or graphite are added to the iron-based iron oxide aerogel, and after stirring evenly, it is pressed with a forging press. The carbon nanotubes or graphite are used as conductive materials. After stirring evenly, it is pressed with a forging press, and aluminum sheets (negative electrode) and copper sheets (positive electrode) are connected to both ends.

[0029] Please see Figure 2 A novel and safe iron-based energy storage battery includes the following preparation steps:

[0030] Step S1: Select spinel-type ferrite and prepare ferrogel by supercritical gel drying method. Demagnetize the prepared ferrogel by demagnetizing machine.

[0031] Step S2: Add carbon nanotubes or graphite to the demagnetized ferrogel and stir until homogeneous;

[0032] Step S3: Insert several copper wires 4 and aluminum wires 3 into the top and bottom of the ferroaerogel, respectively. The ends of the copper wires 4 and aluminum wires 3 extend into the ferroaerogel. Then, use a forging hydraulic press to forge the ferroaerogel and carbon nanotubes or graphite into a solid brick-shaped solid (the ends of the copper wires 4 and aluminum wires 3 are outside the brick-shaped solid).

[0033] Step S4: Weld copper wire 4 and aluminum wire 3 to copper sheet 2 and aluminum sheet 1 respectively, and connect positive electrode 7 to copper sheet 2 and negative electrode 6 to aluminum sheet 1. At the same time, weld PTC sheet 8 to positive electrode 7 to form battery pack.

[0034] Step S5: Wrap 3-4 layers of PE film on the forged battery pack to seal it and achieve a waterproof effect.

[0035] This invention uses ferric oxide aerogel as the energy storage material and carbon nanotubes or graphite as the conductive material. A forging hydraulic press is used to forge the aerogel and conductive material into a sturdy, brick-shaped solid. Positive and negative electrode wires are then connected to form a high-capacity energy storage battery. Simultaneously, a PTC material is connected to the positive electrode. As the temperature rises, the resistance increases, disconnecting the circuit, essentially providing a safety lock for the battery. This safety lock prevents battery combustion and explosion. The resulting energy storage battery is inexpensive, safe, and has a high capacity.

[0036] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel and safe ferroelectric energy storage battery, characterized in that: It includes an aluminum sheet (1) and a copper sheet (2) located above the aluminum sheet (1). Several aluminum wires (3) are welded to the top of the aluminum sheet (1), and several copper wires (4) are welded to the bottom of the copper sheet (2). An energy storage material (5) is provided between the aluminum sheet (1) and the copper sheet (2), and the energy storage material (5) is an iron-based magnetite aerogel. Carbon nanotubes or graphite are added to the iron-based magnetite aerogel. The bottom of the aluminum sheet (1) is provided with a negative electrode (6), the top of the copper sheet (2) is provided with a positive electrode (7), and a PTC sheet (8) is welded on the positive electrode (7).

2. The novel safe ferroelectric energy storage battery according to claim 1, characterized in that: The iron-based ferric oxide aerogel is prepared by using spinel-type ferrite to form a ferrite aerogel, and the prepared ferrite aerogel is processed by a demagnetizer.

3. The novel safe ferroelectric energy storage battery according to claim 1, characterized in that: After adding carbon nanotubes or graphite to the iron-based iron oxide aerogel and stirring it evenly, it is pressed using a forging press.

4. A novel safe ferroelectric energy storage battery according to any one of claims 1-3, characterized in that: The preparation steps include the following: Step S1: Select spinel-type ferrite and prepare ferrogel by supercritical gel drying method. Demagnetize the prepared ferrogel by demagnetizing machine. Step S2: Add carbon nanotubes or graphite to the demagnetized ferrogel and stir until homogeneous; Step S3: Insert several copper wires (4) and aluminum wires (3) into the top and bottom of the iron aerogel, respectively. Then, use a forging hydraulic press to forge the iron aerogel and carbon nanotubes or graphite into a solid brick-shaped solid. Step S4: Weld and fix the copper wire (4) and aluminum wire (3) to the copper sheet (2) and aluminum sheet (1) respectively, and connect the positive electrode (7) to the copper sheet (2) and the negative electrode (6) to the aluminum sheet (1). At the same time, weld the PTC sheet (8) to the positive electrode (7) to form a battery pack. Step S5: Cover the forged battery pack with 3-4 layers of PE film for sealing.

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