Smart battery device and its recycling method and system

Abstract

This invention provides a smart battery device that facilitates classification, recycling, and regeneration (sourced), as well as a recycling method and system thereof. [Solution] The smart battery device includes a processing module and a battery cell, the processing module being a storage module configured to store battery history associated with the battery cell, the processing module being configured to read and write to the storage module, and an encryption module configured to encrypt at least a portion of the battery history information using an encryption mechanism, the battery cell being electrically connected to the processing module, and the processing module being powered by the battery cell.

Description

Technical Field

[0001] This application claims priority to Taiwan Patent Application No. 113144653, filed on November 20, 2024, all of which are incorporated herein by reference.

[0002] The present invention relates to a smart battery device, and more particularly, to a smart battery device capable of facilitating categorization, recycling, and sourcing, as well as a recycling method and system thereof.

Background Art

[0003] In recent years, with the rapid development of mobile phones, laptops, electric vehicles, etc., the usage of batteries has increased exponentially, and the recycling of waste batteries has also increased. In the future, a large-scale "retirement wave" of batteries is expected, and how to effectively recycle and dispose of these waste batteries has become an important issue.

[0004] Batteries contain many important components such as positive electrode materials, negative electrode materials, and precious metals such as nickel, cobalt, manganese, and copper. These materials and metals are finite resources. Appropriately recycling and reusing these materials and metals not only contribute to environmental protection but also promote resource recycling and align with the global trend of environmental, social, and governance (ESG) and the goal of "zero carbon emissions."

[0005] Currently, the technologies used for battery recycling mainly focus on extracting precious metals from waste batteries, further refining them to increase purity, and then reusing them. For example, in recent years, the United States and European countries have been actively promoting the development of electric vehicles and energy storage industries, resulting in a significant increase in the demand for batteries.

[0006] Existing battery recycling methods can be broadly divided into dry metallurgy and wet metallurgy. Dry metallurgy is low-cost but has a low recovery rate and causes more serious pollution. Wet metallurgy has a high recovery rate and causes less pollution but is more expensive. Furthermore, some manufacturers are trying to reuse recycled metal materials in battery manufacturing to shorten product cycles and improve resource utilization.

[0007] However, current battery recycling technologies still face several challenges. For example, battery material systems are diverse, the recycling process is complex, and it is difficult to guarantee the quality and performance of recycled materials. Furthermore, the recycling industry chain lacks transparency, making it difficult to track the source and final destination of materials.

[0008] Therefore, in order to ensure the efficient use of resources, protect the environment, and promote the development of a circular economy, a more scientific, environmentally friendly, and sustainable approach to battery recycling management is needed. [Overview of the project] [Problems that the invention aims to solve]

[0009] This invention provides a smart battery device that facilitates classification, recycling, and regeneration (sourced), as well as a recycling method and system thereof. [Means for solving the problem]

[0010] To address the challenges of battery recycling and processing technologies described above, the present invention provides a smart battery device, as well as a recycling method and system thereof, that achieves sustainable management and the tracking of material sources and flows by using a battery device to set up certificates, track the recycling process, and manage it systematically.

[0011] The present invention provides a smart battery device. The smart battery device includes a processing module and a battery cell. The processing module includes a storage module and an encryption module. The storage module is configured to store battery history associated with the battery cell, and the processing module is used to read and write to the storage module. The encryption module is configured to encrypt at least a portion of the battery history information using an encryption mechanism. The battery cell is electrically connected to the processing module, and the processing module is powered by the battery cell.

[0012] The present invention provides a recycling system for a smart battery device. The recycling system includes the smart battery device and electronic equipment described above. The electronic equipment includes a decryption module. The decryption module can decrypt and read the encrypted battery history of the smart battery device.

[0013] The present invention provides a method for recycling smart battery devices. The recycling method includes a storage step, an encryption step, and a classification step. The storage step is used to store battery history in the smart battery device. Battery history includes the battery's material system, production history, and recycling information. The encryption step is used to encrypt at least a portion of the information in the battery history using an encryption mechanism. The classification step is used to classify the battery devices for recycling based on their battery history.

[0014] This disclosure will be better understood from the following description of exemplary embodiments and the accompanying drawings. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram of a battery device 200 according to one embodiment of the present invention. [Figure 2]This is a schematic block diagram of a battery device 200 in an embodiment combined with electronic equipment according to the present invention. [Figure 3] This is a flowchart illustrating a battery device recycling method according to one embodiment of the present invention. [Modes for carrying out the invention]

[0016] The present invention is described with reference to the accompanying drawings, where the same reference numerals throughout the drawings indicate similar or identical components. The drawings are not drawn to scale and are provided for illustrative purposes only. Several embodiments of the present invention are described below with reference to the examples of applications in the drawings. This means that many specific details, relationships, and methods are described so that the invention may be fully understood. In any case, a person with ordinary skill in the relevant art will recognize that the invention may still be achievable without one or more specific details or by other means.

[0017] In other embodiments, well-known structures or operations are not described in detail to avoid confusion with the present invention. The present invention is not limited by the order of the operations or events described (for example, some operations may occur in a different order under other operations or events, or may occur simultaneously). Furthermore, not all of the operations or events described have to be performed in the same manner as in the present invention.

[0018] I. Smart Battery Device

[0019] Figure 1 is a schematic diagram of a battery device 200 according to one embodiment of the present invention. As shown in Figure 1, the battery device 200 includes a battery cell 202, a microcontroller 206, a charge switch 208, a discharge switch 210, a protection device 212, a second-level protection chip 214, a communication bus SMBUS_DATA, a communication bus SMBUS_CLOCK, a battery identification indicator BATTERY_ID, a battery identification indicator SYSTEM_ID, a logic control circuit 236, at least one cathode P+, ​​and at least one anode P-.

[0020] In one embodiment, the microcontroller 206 may also include, but is not limited to, a storage unit 226 and an encryption module 228 integrated with the microcontroller 206. The microcontroller 206 is an example of a “processing unit” disclosed herein. In one embodiment, the processing unit may be, but is not limited to, a system-on-a-chip (SoC), an application-specific integrated circuit (ASIC), an application processor (AP), or a digital signal processor (DSP) for executing a corresponding program.

[0021] In one embodiment, the storage unit 226 is used by the microcontroller 206 to read and write battery history associated with the battery cell 202, but is not limited thereto. In one embodiment, the storage unit 226 includes memory such as volatile memory or non-volatile memory. Volatile memory may include, but is not limited to, registers, dynamic random access memory (DRAM), or static random access memory (SRAM). Non-volatile memory may include, but is not limited to, flash memory or read-only memory.

[0022] In one embodiment, the battery cell 202 can convert the received electrical energy into chemical energy for storage, or convert the stored chemical energy into electrical energy for output. In one embodiment, the battery history associated with the battery cell 202 refers to, but is not limited to, information such as the material system of the battery cell, the type of material, the supplier, the number of recycling times, and the proportion of materials.

[0023] In one embodiment, the encryption module 228 uses an encryption mechanism to encrypt at least a part of the information in the battery history (for example, confidential information such as the proportion of materials), but is not limited thereto. The functions and operations of the encryption module 228 can be realized by executing corresponding programs via the microcontroller 206, or via hardware such as a system-on-chip (SoC), an application-specific integrated circuit (ASIC), an application processor (AP), or a digital signal processor (DSP), but are not limited thereto.

[0024] The second-level protection chip 214 is electrically connected to the battery cell 202 and determines whether to activate the protection means of the battery device 200 based on the state of the battery cell 202 (for example, charging voltage, charging current, or discharging current, etc.). In some embodiments, the protection means includes overvoltage protection (OVP), overcurrent protection (OCP), overtemperature protection (OTP), undervoltage protection (UVP), low-temperature protection (UTP), reverse voltage protection, and short-circuit protection.

[0025] In some embodiments, when the battery cell 202 is being charged and the microcontroller 206 outputs a signal 230 to the charging switch 208 to turn off the charging switch 208, the battery device 200 stops charging. In some embodiments, when the battery cell 202 is discharging and the microcontroller 206 activates overcurrent protection, overtemperature protection, low voltage protection, low temperature protection, reverse voltage protection, and short circuit protection during protection measures, the microcontroller 206 outputs a signal 232 to the discharge switch 210 to turn off the discharge switch 210, whereby the battery device 200 can stop discharging.

[0026] As shown in FIG. 1, the charging switch 208 is electrically connected between the protection device 212 and the discharge switch 210. The discharge switch 210 is electrically connected between the cathode P+ and the charging switch 208. The charging switch 208 changes its state according to the signal 230 from the microcontroller 206. For example, when the signal 230 is at a logic low level such as "0", the charging switch 208 allows current to flow from node B to node A and stops the current flow from node A to node B. When the signal 230 is at a logic high level such as "1", the charging switch 208 is in a fully conductive state. The discharge switch 210 changes its state according to the signal 232 from the microcontroller 206. For example, when the signal 232 is at a logic low level such as "0", the discharge switch 210 allows current to flow from node A to node B and stops the current flow from node B to node A. When the signal 232 is at a logic high level such as "1", the discharge switch 210 is in a fully conductive state.

[0027] The microcontroller 206 is electrically connected to the second level protection chip 214 and can detect the relative charge state (RSOC) of the battery cell 202. In some embodiments, the microcontroller 206 can communicate with the second level protection chip 214 via a communication interface 240. For example, the microcontroller 206 can obtain information such as the charge / discharge current and charge / discharge voltage of the battery cell 202 from the second level protection chip 214 via the communication interface 240. In some embodiments, the communication interface 240 is an I2C communication interface, but the present invention is not limited thereto. The microcontroller 206 can control the output of electrical energy from the battery cell 02 via the cathode P+ of the battery device 200 and the return of electrical energy from the anode P- of the battery device 200 to the battery cell 202. Alternatively, the microcontroller 206 can control an external power supply (not shown) outside the battery device 200 to charge the battery cell 202.

[0028] In some embodiments, if the protection chip of the battery device 200 (e.g., the second-level protection chip 214 in Figure 1) activates a protective measure but is unable to turn off the charge switch or discharge switch (e.g., the charge switch and / or discharge switch is damaged), the microcontroller 206 outputs a third signal (e.g., signal 232) to the protection device (e.g., protection device 212 in Figure 1), thereby disconnecting the protection device.

[0029] In some embodiments, the logic control circuit 236 is, for example, a logic OR circuit that receives a signal 234 from the microcontroller 206 and a signal from the second-level protection chip 214, and disconnects the protection device 212 if either the microcontroller 206 or the second-level protection chip 214 initiates a protection measure, but is not limited to this.

[0030] In some embodiments, the battery device 200 includes an electronic device having at least one processor. The electronic device is, for example, a laptop computer, a tablet, a wearable device, or a smartphone. In some embodiments, the electronic device may be a vehicle such as an electric vehicle, in which case the battery device 200 corresponds to a vehicle battery.

[0031] In some embodiments, the microcontroller 206 is used to communicate with at least one processor of the electronic device having the battery unit 200 via the communication buses SMBUS_CLOCK and SMBUS_DATA. In some embodiments, the battery identification indicators BATTERY_ID and SYSTEM_ID of the battery unit 200 can be used to allow at least one processor of the electronic device having the battery unit 200 to detect that the battery unit 200 has been set up within the electronic device.

[0032] In some embodiments, the microcontroller 206 can receive battery history, including battery material system, manufacturing history, and recycling information, via the communication buses SMBUS_CLOCK and SMBUS_DATA. The microcontroller 206 can also record battery history by monitoring and recording the charging and discharging of the battery device.

[0033] In this invention, battery history (material information, manufacturing history, and recycling information of the battery device, etc.) is recorded in the storage unit 226. The encryption mechanism in the encryption module 228 is used to protect a portion of the information, thereby protecting confidential information while simultaneously enabling the recycling and sustainable management of battery materials.

[0034] In one embodiment, the battery history, including material information, manufacturing history, and recycling information, is recorded in the storage unit 226 in text and numerical format. For example, the storage unit can be a random access memory (RAM), read-only memory (ROM), register, etc., having a certain amount of storage space, and the battery history is stored at a specific address, but is not limited to this.

[0035] In one embodiment, the battery history includes the following information: material type (e.g., ternary lithium (also called nickel-cobalt-manganese) battery, lithium iron phosphate battery, etc.), supplier (e.g., supplier information for battery materials), number of recyclings i.e., the number of times the battery material has been recycled, and material ratio i.e., the ratio of various materials in the battery (e.g., the ratio of nickel, cobalt, manganese, etc.).

[0036] In one embodiment, information (e.g., material type, supplier, recycling time, material ratio, etc.) is defined at a specific address (e.g., address 0x70) on the storage unit 226, as shown in Table 1 below, and the battery material information is represented using, for example, a distinction between 32 bytes of text and numerical values. This information is stored on the storage unit 226.

[0037] [Table 1]

[0038] In one embodiment, material information is stored at a specific address (e.g., address 0x70) within the storage unit 226 and may be broadly classified into lithium cobalt oxide (LCO), nickel cobalt manganese (NCM), lithium iron phosphate (LFP), or lithium iron manganese phosphate (LMFP), but is not limited to these.

[0039] In one embodiment, supplier information is stored at a specific address within the storage unit 226, and the supplier may be, but is not limited to, Company A, Company B, or Company C. For example, the supplier may also be a source of information regarding the place of origin.

[0040] In one embodiment, the recycling count information is stored at a specific address within the storage unit 226 (for example, the recycling count is accumulated in the order of 0, 1, etc., but is not limited to this). For example, the recycling count information may be the number of hours used, the date of the previous recycling, the manufacturing date, etc.

[0041] In one embodiment, the material ratio information is stored at a specific address in the storage unit 226 (for example, known as nickel-cobalt manganese battery system type 523 (also called NCM523), such as nickel: 50%, cobalt: 20%, manganese: 30%), but is not limited to this. For example, the material ratio information may include more information such as components and materials, and the ratio of each material may be a mass ratio, volume ratio, or molar ratio.

[0042] In this invention, the battery history information described above allows for rapid sorting of the battery material system during recycling and reuse, thereby improving recycling efficiency.

[0043] II. Classification of Battery Materials

[0044] Different types of batteries have different cathode material compositions and therefore different recyclability values. To avoid a decrease in the recycling rate, it is necessary to have different recycling methods so that different types of batteries are classified and processed separately.

[0045] For example, the positive electrode material of a ternary lithium battery is composed of metallic elements (e.g., nickel, cobalt, manganese, etc.), and its recycling method involves the separation and purification of these metallic elements.

[0046] In one embodiment of the present invention, batteries can first be classified to separate different types of electric batteries. The classification can be, for example, ternary lithium batteries (cathode material includes ternary polymer (e.g., lithium nickel-cobalt manganese oxide or lithium nickel-cobalt aluminate, etc.)), lithium iron phosphate batteries (positive electrode material is lithium iron phosphate), and lithium cobalt batteries (positive electrode material is lithium cobalt).

[0047] This invention achieves the following effects by classifying batteries: namely, it avoids the reduction in recycling rates caused by mixing different types of batteries, simplifies the recycling process, reduces recycling costs, avoids the leakage of hazardous substances contained in batteries and handling difficulties, and improves safety.

[0048] III. Encryption mechanism

[0049] In this invention, as shown in the following embodiments, an encryption mechanism is used to encrypt some of the battery history information (e.g., the manufacturer's confidential formulation ingredients) to protect trade secrets, while simultaneously disclosing other information (e.g., battery materials, production history, and recycling information) to enhance the transparency of the recycling industry chain.

[0050] In one embodiment, it is assumed that the battery device is a ternary lithium battery with a material system of NCM, the ratio of the four materials used is 11:09:72:08, and the number of recycling cycles is 4. This information is stored at a specific address represented as "NCM1109720804", where "NCM" indicates the material system (e.g., ternary nickel-cobalt-manganese (NCM)). The values ​​of bits 1 and 2, "11", indicate the ratio of the first material (e.g., the ratio of the first material can be lithium). The values ​​of bits 3 and 4, "09", indicate the ratio of the second material (e.g., the second material can be cobalt). The values ​​of bits 5 and 6, "72", indicate the ratio of the third material (e.g., the third material can be nickel). The values ​​of bits 7 and 8, "08", indicate the ratio of the fourth material (e.g., the fourth material can be manganese). The value of bit 9, "0," is an identification code that may be used to determine whether the battery is original, or it may remove any meaningless hash codes during the calculation. The value of bit 10, "4," indicates, but is not limited to, the number of times at least one of the first to fourth materials has been recycled or the total number of times.

[0051] In one embodiment, the last 10 bits of the information "NCM1109720804" described above as a meaningful code can be converted into an encrypted password by decryption by an encryption mechanism (for example, 16-bit information "05036E7C").

[0052] Specifically, the encryption steps for decryption are as follows:

[0053] 1. The last 10 bits of the code information "NCM1109720804" are obtained as the meaningful code "1109720804".

[0054] 2. The 9th bit "0" in the code "1109720804" is meaningless and can be removed during calculation.

[0055] 3. The last 3 bits are obtained after the 9th bit is deleted (i.e., the 7th, 8th, and 10th bits "084"), inverted, and combined with the first 6 bits "110972" to become the bit "084110972".

[0056] 4. The decimal value bit "084110972" is converted to the hexadecimal value "05036E7C".

[0057] The hexadecimal value "05036E7C" is stored as encrypted password information.

[0058] 6. The encrypted password information is set on the outside of the battery device as identification information (also called a tag code).

[0059] This allows for preliminary and rapid classification, even if frontline personnel performing recycling are unable to read or decipher the internal information during the initial recycling process, by using identification information (also known as energy certificates) to distinguish whether lithium batteries belong to the same system.

[0060] In one embodiment, different encryption mechanisms may be used to generate encrypted code information for different purposes. For example, in the embodiment described above, the encrypted code information could be the easily decryptable decimal value "084110972" to allow personnel to easily understand the distribution of raw materials to be classified and processed. This, combined with the SOP description of the decryption mechanism, allows personnel to easily understand the distribution of raw materials to be classified and processed. Alternatively, in the embodiment described above, large-scale classification can be performed quickly using a corresponding reader by using other support machines (for example, by converting the encrypted code information into a QR code® or other barcode that can be easily read and recognized by a machine).

[0061] In this embodiment, for the sake of explanation, a specific encryption mechanism implemented by combination and transformation is given as an example, but it is not limited to this. The encryption mechanism implemented by the encryption module 228 may be implemented by a specific key, hash algorithm, asymmetric encryption algorithm, or a combination thereof.

[0062] Figure 2 is a schematic block diagram of a battery device 200 in an embodiment combined with the electronic device 300 according to the present invention.

[0063] In one embodiment, the electronic device 300 includes, but is not limited to, an AC / DC power interface 301, a power selection module 302, a charge / discharge circuit 303, a battery device 200, a microprocessor 315, a power management module 314, a system power supply 313, and a display module 316.

[0064] In one embodiment, the AC / DC power interface 301 is, for example, an adapter connected to an external AC power outlet and capable of receiving AC power, or a Universal Serial Bus (USB) interface capable of receiving external DC power. The DC power source is, for example, another mobile power supply, but is not limited to this.

[0065] In one embodiment, the power selection module 302 is electrically connected to the AC / DC power interface 301. When the AC / DC power interface 301 is connected to an external power supply and receives power, the power selection module 302 uses the external power supply as the main power source.

[0066] In one embodiment, the battery device 200 can be a vehicle battery, the electronic equipment 300 can be an electric vehicle or other electric vehicle, and the AC / DC power interface 301 can be one of several charging interfaces for electric vehicles. For example, Type 1 (SAEJ1772) is an AC charging interface for the North American and Japanese markets and is typically used in homes and public charging stations; Type 2 (IEC62196-2, also known as Mennekes) is the most commonly used AC charging interface in Europe and also supports three-phase power; Type 3 is an AC charging interface used in France and Italy and is designed with a protective cover for safety; and the combined charging system (CCS) is further subdivided into Combo 1 and Combo 2, which support both AC and DC fast charging. Combo 1 is common in North America, Combo 2 is more prevalent in Europe, CHAdeMO is a fast DC charging interface mainly used in Japanese models, Tesla Supercharger is Tesla's fast DC charging interface and is exclusive to Tesla vehicles, although some regions have begun supporting other car models, and GB / T is China's standard electric vehicle (EV) charging interface and includes both AC and DC versions.

[0067] In one embodiment, the power selection module 302 is electrically connected to the charge / discharge circuit 303 and the system power supply 313. When the AC / DC power interface 301 is connected to an external power source and receiving power, the power selection module 302 uses the external power source as the main power source. The power selection module 302 charges the battery device 200 via the charge / discharge circuit 303 and also supplies power to the system power supply 313 to supply power to the connected external system. In one embodiment, when the AC / DC power interface 301 is not connected to an external power source, the power selection module 302 uses the battery device 200 as the main power source, and power from the battery device 200 is supplied to the system power supply 313 via the charge / discharge circuit 303 and the power selection module 302, supplying power to the connected external system.

[0068] In one embodiment, the charge / discharge circuit 303 includes, for example, a charge switch 208, a discharge switch 210, a protection device 212, and a second-level protection chip 214, as shown in Figure 1.

[0069] In one embodiment, the system power supply 313 refers to a module that supplies power to connected electronic devices (e.g., 3C products, laptops, tablet devices, mobile devices such as smartphones, robots, electric vehicles, etc.). The system power supply 313 is electrically connected to the power selection module 302 and the power management module 314.

[0070] In one embodiment, the battery device 200 shown in Figure 2 is identical to the battery device 200 shown in Figure 1, so its description is omitted.

[0071] In one embodiment, the microprocessor 315 includes a combination of a CPU, software, firmware, etc., and is the core processing unit of the electronic device 300, which is responsible for processing arithmetic and control instructions. In one embodiment, the microprocessor 315 is electrically connected to the battery device 200, the power management module 314, and the display module 316. The microprocessor 315 can decrypt and read the battery history information of the battery device 200 using a decryption mechanism corresponding to the encryption mechanism, and output the battery history information to the display module 316 for display.

[0072] In one embodiment, the microprocessor 315 can, for example, execute dedicated software having a decoding mechanism and function as a decoding module for viewing battery history information of the storage unit 226 in the battery device 200. The functions and operation of the decoding module may be, but are not limited to, the microprocessor 315 executing a corresponding program, or several pieces of hardware (e.g., a system-on-a-chip (SoC), an application-specific integrated circuit (ASIC), an application processor (AP), or a digital signal processor (DSP)).

[0073] In one embodiment, the data in the battery history information can be divided into dynamic data and static data. Dynamic data includes discharge voltage, discharge current, cycle life, and the degree of capacity degradation. Discharge voltage and discharge current refer to the voltage and current that the battery unit can supply during discharge and may degrade during the recycling process. For example, cycle life refers to the total number of charge and discharge cycles that the battery has undergone. The degree of capacity degradation refers to the total energy that the battery can release after it has been fully charged and may, but is not limited to, degrade during the battery recycling process. Static data includes material system, supplier information, number of recycled items, material ratios, etc. Specifically, as shown in Table 2 below, the components and distribution ratios of the battery material system are easily visible.

[0074] [Table 2]

[0075] The static data in Table 2 records that the material system is NCM, the first material is lithium, the supplier of the first material is Company A, the percentage is 10%, and the number of recycled items is 1. The second material is cobalt, the supplier of the second material is Company B, the percentage is 20%, and the number of recycled items is 2. The third material is nickel, the supplier of the third material is Company C, the percentage is 70%, and the number of recycled items is 3.

[0076] This allows for faster identification and classification based on external label information. In one embodiment, static data may be sealed (e.g., sealed) in the input storage unit by specific instructions for purposes such as ensuring the reliability of battery history and preventing tampering and forgery.

[0077] In one embodiment, the static data stored in the storage unit 226 may also include authentication data for functioning as an authentication chip. The authentication data may include, but is not limited to, the Restriction of Hazardous Substances Directive (RoHS), which prohibits the use of certain hazardous substances (e.g., lead, cadmium, mercury, etc.) in electronic products; Waste Electrical and Electronic Equipment (WEEE) regulates the recycling and disposal of electronic products and ensures that electronic waste is handled in an environmentally friendly manner; International Organization for Standardization (ISO) 14001 is an environmental management system standard that ensures compliance with environmental regulations and policies during the production process; Electronic Product Environmental Assessment Tool (EPEAT) evaluates and certifies the environmental performance of electronic products (e.g., battery life and recycling rate); and the European Conformity (CE) mark indicates that a product complies with EU safety and environmental standards (e.g., battery safety and environmental performance).

[0078] In one embodiment, the power management module 314 is electrically connected to the microprocessor 315 and the system power supply 313. The power management module 314 can, but is not limited to, monitor and adjust the power distribution and consumption of the electronic equipment 300 to optimize power usage, extend battery life, and prevent overload or short circuits.

[0079] In one embodiment, the display module 316 is electrically connected to the microprocessor 315. The display module 316 displays the operating status and information of the battery device 200 to provide a user interface that displays battery history information, battery power status, and warning messages in case of abnormalities, but is not limited to this. For example, the display module 316 can be simplified as an LED warning light that has only a warning function.

[0080] Figure 3 is a flowchart of a battery device recycling method according to one embodiment of the present invention.

[0081] The steps in Figure 3 are as follows:

[0082] Step S300: The battery material system is defined, and static data (e.g., material system, material type, supplier information, cycle time, material ratio) and other dynamic data (e.g., discharge voltage, discharge current) that constitute the battery cell are identified and described.

[0083] Step S302: Data is written to a specific address of the storage unit 226. That is, the dynamic data and static data described above as battery history are written to a first specific address of the storage unit 226.

[0084] Step S304: Specific data is encrypted using a specific encryption mechanism (for example, the encryption mechanism exemplified in the embodiments described above, or an asymmetric encryption algorithm such as a specific key, hash algorithm, or static data encryption to encrypt specific data within the battery history).

[0085] Step S306: Encrypted data is stored at another specific address. That is, encrypted static data is written to a second specific address of the storage unit 226, and encrypted static data (e.g., tag code) may be used as identification information and stored at a second specific address that is readable.

[0086] Step S308: A portion of the data is sealed to prevent tampering. That is, an appropriate sealing technique (e.g., digital signature, tamper-proof sealing, or the use of read-only memory (ROM) that allows only one write to generate a certificate chip) is selected and configured to ensure the immutability and integrity of the static data.

[0087] Step S310: Recycled batteries are classified and tracked based on their recycling history. That is, a history management system is built to recycle the batteries and record the production, use, and recycling process of each battery. Recycled batteries are classified based on the battery's battery history information (e.g., external identification information of the battery) to ensure that batteries of different types and conditions are properly recycled and disposed of.

[0088] In one embodiment, the identification information includes at least classification information, manufacturing date, material type, etc., and is used for classifying battery systems. The classification information includes at least encrypted material ratio information, etc., enabling frontline personnel responsible for classification and recycling to quickly identify batteries with similar material ratios based on the classification information, and to classify and recycle the batteries.

[0089] In one embodiment, since the battery history includes supplier information, recycling count information, etc., it is possible to ensure safety and compliance by performing history tracking so that the source and history of the battery can be traced in the event of any problem.

[0090] This invention allows for tracking the entire lifecycle of a battery, from production to use and recycling, enabling the recycling and sustainable management of battery materials. Furthermore, this invention can help prevent oligopoly in the battery materials market, reduce reliance on single-market materials, and promote the development of a circular economy.

[0091] This invention provides a battery device and a method and system for recycling the same. Recycling and sustainable management of battery materials are achieved through the establishment of technologies such as battery history, classification and processing, and encryption mechanisms in line with ESG trends and goals, thereby promoting the development of a circular economy.

[0092] While embodiments of the present invention are as described above, it should be understood that the above is presented as an example and is not limiting. Many modifications to the exemplary embodiments of the present invention described above can be carried out without infringing upon the spirit and scope of the invention. Therefore, the scope of the present invention is not limited by the embodiments described above. More specifically, the scope of the present invention should be defined in terms of the scope of the following patent application and its equivalents.

[0093] Although the invention described above is illustrated and illustrated by one or more related embodiments, equivalent variations and modifications will be conceivable by those skilled in the art based on the above specification and accompanying drawings. Furthermore, although certain features of embodiments of the present invention are illustrated and illustrated by one or more related embodiments, these features can be combined with one or more other features, potentially resulting in known or specific needs and contributions to the present invention.

[0094] Unless otherwise defined, all terms used herein (including technical or scientific terms) should be understood as generally understood by a person of ordinary skill in the art of the present invention. Terms as defined in commonly used dictionaries should be interpreted as having the same meaning in the context of the art to which they pertain. These terms should not be interpreted as idealized or overly formal unless expressly defined herein. [Explanation of Symbols]

[0095] 200... Battery device 202…Battery cell 206…Microcontroller 208...Charging switch 210... Discharge switch 212…Protective device 214…Second-level protection chip 226...Storage Unit 228… Encryption module 230, 232, 234…signal 236...Logic control circuit 240...Communication Interface SMBUS_DATA, SMBUS_CLOCK… Communication bus BATTERY_ID, SYSTEM_ID... Battery identification indicator P+... Cathode P-...anode 300…Electronic equipment 301…AC / DC power interface 302... Power selection module 303…Charging / discharging circuit 313... System Power 314…Power management module 315… Microprocessor 316…Display module S300, S302~S310... Step

Claims

1. Processing module and, Battery cells, including, The aforementioned processing module is A storage module configured to store the battery history associated with the battery cell, wherein the processing module is configured to read and write to the storage module, The system includes an encryption module configured to encrypt at least a portion of the battery history information using an encryption mechanism, The battery cell is electrically connected to the processing module, and the processing module is powered by the battery cell. Smart battery device.

2. The smart battery device further includes identification information installed on its outer surface, The aforementioned identification information includes at least classification information for classifying the battery system, the manufacturing date, and the material system. The smart battery device according to claim 1.

3. The classification information is at least a portion of the battery history information encrypted by the encryption module using an encryption mechanism. The smart battery device according to claim 2.

4. The aforementioned battery history includes material system, material type, supplier, number of recycled items, and material percentage. The smart battery device according to claim 1.

5. The battery history further includes at least one of the following: the discharge voltage, discharge current, cycle life, and degree of capacity degradation of the battery cell. The smart battery device according to claim 1.

6. The encryption mechanism is at least one of a specific encryption mechanism, a specific key, a hash algorithm, or an asymmetric encryption algorithm, implemented by combination and transformation. The smart battery device according to claim 1.

7. At least a portion of the aforementioned battery history information is sealed after input to prevent tampering. The smart battery device according to claim 1.

8. The smart battery device is a mobile power supply, an automobile battery, or a rechargeable battery. The smart battery device according to claim 1.

9. The smart battery device according to claim 1, Includes an electronic device having a decryption module that can decrypt and read the encrypted battery history of the smart battery device, A recycling system for smart battery devices.

10. A storage step of storing battery history in the smart battery device, wherein the battery history includes material information, production history, and recycling information. An encryption step of encrypting at least a portion of the information in the battery history using an encryption mechanism, A classification step of classifying the battery device for recycling based on the battery history, Recycling methods for smart battery devices.

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