TWM505117U - Power storage device with damping function - Google Patents

Description

Damping function storage device

The present invention relates to a storage device with a damping function, which is a capacitor stack battery composed of a plurality of capacitor stacks in series/parallel.

The stack is the basic unit that constitutes the battery, and the battery device is an energy storage device. Among them, lithium batteries are currently the most commonly used battery devices. Lithium batteries are a less stable battery device that is dangerous and has many limitations in use. For example, a lithium battery cannot be overcharged or overdischarged during use. If overcharge or overdischarge occurs, the lithium battery may be damaged or discarded. When charging a lithium battery, the ambient temperature must not exceed the temperature range set by the product. The discharge curves of lithium batteries are different at different temperatures, and the discharge voltage and discharge time are also different.

Capacitors have the characteristics of temporary storage of electrical energy, but they cannot be used as power storage devices. Figure 1A discloses a non-polar capacitor 60 that is used in electrical coupling circuits. Figure 1B discloses a fused capacitor 61 that is used in the circuit for filtering and buffering. FIG. 1C discloses a polar supercapacitor 62, which is used in the circuit for temporarily storing electrical energy, and is not a true power storage device. Figure 1D discloses a non-polar supercapacitor 63 (which can be polarized in the circuit), which is used in the circuit for temporary storage of electrical energy, not a true electrical storage device. Figure 1E discloses a polar ultra-high capacitance 64, which is used in the circuit for filtering of large DC power transmission. None of the above five capacitors 60, 61, 62, 63, 64 can actually store electrical energy, and does not have the function of a battery or a secondary battery.

The biggest feature of lithium batteries is that they are "higher than energy" and also cause high internal resistance (DCR). It is not suitable for fast charging and fast release. Lithium batteries are used in parallel with ultra high capacitance (Ultra Cap). The ultra-high capacitance has a capacity that is close to the battery capacity. The ultra-high capacitance has the characteristics of isolating direct current, and there is a certain difficulty in charging. When a lithium battery is used in parallel with an ultra-high capacitance, an occasional short-circuit occurs under high-voltage charging, and the stability is poor.

Lithium batteries are also used in parallel with supercapacitors (Super Cap). The supercapacitor generates a strong electrostatic field (polarization effect) when charging, and the anti-fade force of the capacitance characteristic hinders charging, the potential rises, the temperature rises, and the ambient temperature which is unfavorable for the lithium battery. Whether the lithium battery is used in parallel with the ultra high capacitance (Ultra Cap) or in parallel with the super capacitor (Super Cap), the problem of poor stability of the lithium battery itself cannot be ruled out.

The main purpose of this creation is to provide a storage device with damping function, which is a capacitor stack battery composed of a plurality of capacitor stacks, which can be combined with a suitable charger to achieve fast charge and fast release. .

Another object of the present invention is to provide a power storage device with a damping function, which has a very low internal resistance (DCR), does not cause a temperature rise when an instantaneous short circuit occurs during charging and discharging, and has high stability of the device.

In order to achieve the above object, a storage device having a damping function is provided, which is a capacitor stack battery composed of a plurality of capacitor stacks which are serial/parallel. Each of the capacitor stacks includes: a super capacitor (Super Cap) and an ultra high capacitor (Ultra Cap). The supercapacitor is a non-polar capacitor with a divider inside. The ultra high capacitance is a polar electrochemical capacitor. The super capacitor and the ultra high capacitance are electrically connected in parallel. The capacity of the super capacitor Near or equal to the ultra-high capacitance. When the capacitor stack is charged, the super capacitor generates a polarization effect and is charged with a voltage type of electric energy. The electric energy charged in the supercapacitor is rapidly converted into a current type electric energy due to the potential balance relationship, and flows into the ultra high capacitance storage, which is called a damping effect.

10‧‧‧Capacitor stack battery

11‧‧‧Capacitor stack

12‧‧‧Supercapacitors

13‧‧‧Ultra high capacitance

20‧‧‧Charging device

21‧‧‧Power output device

22‧‧‧Control circuit

23‧‧‧Damping inductance

24‧‧‧High frequency oscillation switch

30‧‧‧Electrical energy generator

40‧‧‧ load

50‧‧‧string/and automatic switch

51‧‧‧Electrical series super capacitor

52‧‧‧Electrical parallel ultra-high capacitance

60‧‧‧No polarity capacitor

61‧‧‧With polar capacitance

63‧‧‧Non-polar supercapacitors

64‧‧‧Positive supercapacitors

65‧‧‧Polar ultra high capacitance

L ₁ ‧‧‧Series inductance

L ₂ ‧‧‧inductive in parallel

R ₁ ‧‧‧resistance

R ₂ ‧‧‧resistance

Figure 1A is a schematic diagram of a non-polar capacitor.

Figure 1B is a schematic diagram of a polar capacitor.

Figure 1C is a schematic diagram of a polar supercapacitor.

Figure 1D is a schematic diagram of a non-polar supercapacitor.

Figure 1E is a schematic diagram of a polar ultracapacitor (Ultra Cap).

FIG. 2 is a schematic structural view of an embodiment of the present invention.

3 is a structural view of a capacitor stack in the embodiment shown in FIG. 2.

4 is a block diagram of a circuit for charging the present embodiment by a damper charging device.

Figure 5 is an equivalent circuit diagram of the creation.

Please refer to Figure 2 and Figure 3. The damper-capable power storage device disclosed in the present invention is a capacitor stack battery 10 composed of a plurality of capacitor stacks 11 as a series/parallel connection. The power storage device must be charged using a charging device having a damping function, for example, a new type of "damped charging device" No. M484854 approved.

Each of the capacitor stacks 10 of the foregoing capacitor stack 10 includes a super capacitor 12 and an ultracap 13 . The super capacitor 12 is internal A non-polar capacitor with a divider. The ultra-high capacitance 13 is a polar electrochemical capacitor. The supercapacitor 12 and the ultra-high capacitance 13 are electrically connected in parallel, and a hidden physical series (polarization). The capacity of the supercapacitor 12 is close to or equal to the capacity of the ultra high capacitance 13. In practice, it is preferable that the capacity of the super capacitor 12 is in the range of 90 to 110% of the capacity of the ultrahigh capacitor 13. When the capacitor stack battery 10 is charged, the supercapacitor 12 of each capacitor stack 11 generates a polarization effect and is charged with a voltage type of electric energy. Due to the potential balance relationship between the supercapacitor and the ultra-high capacitance, the electric energy charged in the super capacitor 12 is quickly converted into a current type electric energy and flows into the ultra-high capacitance 13 to be stored, so that the super capacitor and the super The potential of the high capacitance gradually approaches the same and ends at exactly the same. This is called the damping effect of the resonance phenomenon.

Referring to FIG. 4, when the charging device 20 having the damping function charges the capacitor stack battery 10, for any of the capacitor stacks 11, the super capacitor 12 can generate a strong polarization and charge the electric energy. It enters the super capacitor 12 of the capacitor stack 11. The electric energy charged in the super capacitor 12 is quickly converted into a current type electric energy and stored in the ultra high capacitance 13. The charging device 20 includes a power output device 21, a control circuit 22, a damping inductor 23, and a high frequency oscillation switch 24. The power output device 21 can be connected to an electric energy generating device 30, which mainly boosts or depressurizes the electric energy output from the electric energy generating device 30 and outputs the power. The positive terminal of the capacitor stack battery 10 is connected to the damper inductor 23, and the negative terminal is connected to the high frequency oscillating switch 24. The electric energy generating device 30 may be a regenerative energy generating device or a household power source. The charging device 20 causes the damper inductor 23 to perform a high-frequency continuous operation of storing and discharging by the operation of the high-frequency oscillating switch 24. When the high frequency oscillation switch 24 is in an ON state, the damping inductance 23 stores electric energy. When the high frequency oscillation switch 24 is in an OFF state, the damping inductor 23 discharges the stored electrical energy to charge the capacitor stack battery 10. Therefore, the electric energy discharged by the charging device 20 is Power with frequency response.

When the super capacitor 12 is charged with the electric energy of the voltage type, the potential is raised. After the potential of the supercapacitor 12 rises, the charged electric energy is naturally converted into a current type output, and flows into the ultra high capacitance 13 for storage. After the electric energy charged in the super capacitor 12 flows into the ultra high capacitance 13, the potential of the super capacitor 12 is naturally lowered to facilitate the electric power again. The charging device 20 charges the capacitor stack 10 with electric energy having a frequency response, and causes a high frequency change of the potential of the super capacitor 12 to rise and fall.

Capacitor means electrically charging the damper 20 of the stack 11 to charge electric power having a frequency response, a charging path will follow the path I _1, the voltage charged into the power patterns of the super capacitor 12. The super capacitor power charged in the high frequency 12 due to the oscillation switch 24 is closed at the instant case (the charging device 20 is stopped instantaneously stack cell capacitor 10 is charged), electrical energy storage quickly follow the path of the I path ₂ to The current pattern is charged into the ultra high capacitance 13. The supercapacitor 12 rapidly converts the polarization voltage into a current and flows into the ultra-high capacitance 13 for storage. It is a resonance transition process (which may be referred to as a damping effect), so that the internal resistance of the capacitor stack 11 approaches zero. The inside of the capacitor stack 11 stores the voltage electric energy, the current, and the electric energy in a state of no loss, and constitutes a capacitor stack 11 which is converted into an electrochemical field phenomenon by an electrostatic field physical phenomenon.

The capacitor stack battery 10 discharges electric energy from the path of the discharge path I ₃ by the ultra-high capacitance 13 of each of the capacitor stacks 11 when the discharge is applied to the load 40. The charging path I _{1 of} the capacitor stack 11 is different from the path of the discharging path I ₃ , so that charging and discharging can be performed simultaneously.

FIG. 5 is an equivalent circuit diagram of the present invention, which comprises a string/parallel automatic switch 50, a super-capacitor 51 electrically connected in series, an ultra-high capacitance 52 electrically connected in parallel, an inductance L _{1 in} series nature, and an inductance L in parallel nature. ₂ . When the serial/parallel automatic switch 50 is switched to the series type, electric energy can be charged into the electrically connected super capacitor 51, and the potential of the electrically connected super capacitor 51 is raised to be in a charged state. The electrical energy in the electrically connected supercapacitor 51 is quickly stored in the current mode into the electrically parallel ultrahigh capacitance 52 for storage. When the serial/parallel automatic switch 50 is switched to the parallel mode, the electrical energy stored in the electrically parallel ultra-high capacitance 52 is discharged outward. The resistors R ₁ and R ₂ are internal resistances in the circuit.

The super capacitor 12 may be an Electric Double Layer Capacitors (EDLC) capable of generating a strong electrostatic field during charging. The polar ultra-high capacitance 13 may be a metal oxide pseudo-capacitor capable of rapidly reacting an electrochemical field upon charging.

This creation has the following characteristics:

1. The circuit structure of this creation is simple. When the present invention is charged, the supercapacitor 12 is used to make a polarized dielectric effect of physical properties. When the creation is discharged, the ultra-high capacitance 13 is used as a chemical redox effect.

2. This creation can be used as electrical energy storage for high-power electricity and power. The amount of electricity stored in the capacitor stack battery 10 is determined by the number of series/parallel capacitor stacks 11. Therefore, as long as the capacitor stack 11 composed of a sufficient number of capacitor stacks 12 can store high-power electric energy.

3. This creation stores energy with ultra-high frequency response, which can produce the damping effect of resonance transition. The charging device 20 matched with the creation can discharge the electric energy with the frequency response, so that the damping effect of the resonance transition state can be generated inside the creation, the charging and the storage are smooth, and the charging efficiency is accelerated.

4. The charging path I _{1 of the} present creation is different from the discharging path I ₃ and is suitable for fast charging and rapid discharging.

5. Due to the resonance effect in each capacitor stack, the internal resistance is extremely low, and even if an instantaneous short circuit occurs during charging and discharging, the temperature rise does not occur, and the stability is high.

6. This creation can use the semiconductor process to reduce the volume to be used as a storage device for 3C products, such as graphite crucibles and magnetic materials (magnetoresistive materials). Moreover, according to the creation of the technology, the energy density and capacity can be achieved by the choice of electrode materials and geometric conditions.

In summary, the damper-capable power storage device provided by the present invention, under the charging of the damper charging device 20, utilizes a supercapacitor 12 that can generate a polarization of a strong electrostatic field during charging, and utilizes a polarity. The high storage capacity of the ultra-high capacitance 13 and the ultra-high frequency response of the damping effect can accelerate the charging and improve the stability of the electrical storage device.

The above description is by way of a detailed description of the present invention, and is not intended to limit the scope of the present invention. Anyone who is familiar with such a skilled person can understand, and appropriate changes and adjustments will not lose the essence of this creation, and will not deviate from the spirit and scope of this creation.

10‧‧‧Capacitor stack battery

11‧‧‧Capacitor stack

12‧‧‧Supercapacitors

13‧‧‧Ultra high capacitance

Claims (3)

A storage device with damping function, which is a capacitor stack battery composed of a plurality of capacitor stacks; the capacitor stack includes: a super capacitor (Super Cap) and an ultra high capacitor (Ultra Cap); the super capacitor is a non-polar capacitor with a partition plate inside; the ultra-high capacitance is a polar electrochemical capacitor; the super capacitor and the ultra-high capacitance are electrically connected in parallel, and hidden a physical series connection (polarization); the capacity of the supercapacitor is within 90~110% of the capacity of the ultra-high capacitance; when the capacitor stack is charged, the super capacitor generates a polarization effect and is charged with a voltage The electrical energy of the type; due to the potential balance relationship between the supercapacitor and the ultra-high capacitance, the electric energy charged in the super-capacitor is rapidly stored into the current-type electric energy and flows into the ultra-high capacitance to form a resonance type. Damping effect of the state. A power storage device having a damping function according to claim 1, wherein the super capacitor is an electric double layer capacitor (EDLC) capable of generating a strong electrostatic field during charging. The damper-capable power storage device of claim 1, wherein the ultra-high capacitance is a metal oxide pseudo-capacitor capable of rapidly reacting an electrochemical field during charging.