PACK platform and method based on multi-electric-quantity soft package CTP module

Abstract

The invention relates to the technical field of power batteries, and discloses a PACK platform and method based on a multi-electric-quantity soft package CTP module, and the method comprises the steps: 1, presetting the opening size of a standardized battery pack according to the space structure of each vehicle type; 2, according to the opening size, the electric quantity needed by the battery pack is determined, and the number of battery cells in each battery pack module is calculated; the thickness of each battery cell is adjusted, and different battery cell capacities are set according to the battery cells with different thicknesses; 3, calculating filling gaps among the battery cells according to the number of the battery cells to form a CTP module; and step 4, according to the electric quantity demand of the vehicle type, selecting a corresponding number of CTP modules, combining the CTP modules, outputting different electric quantity CTP module configuration modes, and forming a multi-thickness and multi-electric quantity PACK platform. According to the invention, flexible adjustment of the electric quantity of the battery pack is realized, the requirements of various vehicle types are met, the production process is simplified, the production efficiency and the quality stability are improved, the thermal safety out-of-control risk is reduced, and the overall production cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and particularly to a PACK platform and method based on a multi-electricity soft-pack CTP module. Background Art

[0002] With the rapid development of the electric vehicle market, the electricity demand for battery packs in different vehicle models is becoming increasingly diverse. The traditional battery pack development mode usually adopts a customized design concept, and conducts exclusive development for specific vehicle model requirements. This "one vehicle, one design" path results in a long development cycle, high cost, and it is difficult to meet the rapidly changing market demands. Although the current mainstream CTP (Cell to Pack) technology significantly improves the energy density and production efficiency of battery packs by simplifying the module structure, it is still difficult to cope with the differentiated electricity demands of different vehicle models.

[0003] Currently, most existing CTP solutions adopt a fixed design architecture of single-electricity customization. However, when dealing with diverse electricity demands, due to the special requirements of different vehicle models for the size and structural layout of battery packs, it is necessary to redesign key components such as the box structure, copper bar routing, and BDU layout for each vehicle model during design. This not only increases the high mold opening cost, but also causes repeated investment in R & D resources, resulting in poor compatibility. More critically, to adapt to different electricity demands, it is necessary to repeatedly develop battery packs of different specifications. This customized development mode leads to a low degree of component generalization, making it difficult to form economies of scale, and indirectly increasing the overall manufacturing cost.

[0004] Moreover, limited by the existing customized design, the internal structure of the battery pack often adopts a fixed scheme. This rigid architecture makes it difficult for the battery system to adapt to a wide range of electricity demands through simple structural adjustments, further reducing the applicability of the battery pack. Summary of the Invention

[0005] The present invention aims to provide a PACK platform and method based on a multi-electricity soft-pack CTP module to solve the problems of poor compatibility of existing battery packs, low component generality, long development cycle, high manufacturing cost, and difficulty in meeting the diverse market demands of electricity requirements.

[0006] To achieve the above object, the present invention adopts the following technical solutions. A method for constructing a PACK platform based on a multi-electricity soft-pack CTP module includes the following steps:

[0007] Step 1, preset a standardized battery pack opening size according to the spatial structure of each vehicle model;

[0008] Step 2, determine the required electricity amount of the battery pack according to the opening size, calculate the number of battery cells in each battery pack module; and adjust the thickness of each battery cell, and set different battery cell capacities for battery cells with different thicknesses;

[0009] Step 3: Calculate the filling gap between the battery cells according to the number of battery cells, and fill it to the specified position in the set manner to form a CTP module, which is set as a platform component unit.

[0010] Step 4: Select the corresponding number of CTP modules according to the power demand of the vehicle model, and combine them in the corresponding combination method to output different power CTP module configuration methods, forming a PACK platform with multiple thicknesses and multiple powers.

[0011] This solution also provides a PACK platform based on a multi-power soft-pack CTP module, which is applied to the above platform construction method, including a vehicle power demand unit, multiple standardized CTP module units, a configuration unit, a warning unit, and an output unit; the vehicle power demand unit is used to obtain the required power and model of the vehicle; the standardized CTP module unit is used to construct multiple standardized CTP modules; the configuration unit is used to configure the battery pack according to the required power of the vehicle by selecting the corresponding configuration method; the warning unit is used to perform warning force verification on the configured battery pack; the output unit is used to output the corresponding 3D and 2D data of the configured battery pack structure.

[0012] The principle and advantages of this solution are as follows:

[0013] In the traditional battery pack design method, the battery pack is usually regarded as an indivisible whole for design, and there is a strong coupling relationship between components. Any parameter adjustment will trigger a chain of design changes. However, in this solution, by decoupling the design parameters and establishing an independently adjustable dimensional space, the adjustment parameters cooperate with each other and remain relatively independent, thus realizing flexible power configuration without changing the basic architecture.

[0014] This solution breaks through the design limitations of the traditional fixed architecture and innovatively proposes to achieve flexible power configuration through multi-dimensional parameter coordination adjustment. By establishing a multi-dimensionally adjustable battery pack architecture system, it provides a basic installation space by controlling the opening size at the PACK level, optimizes the energy density by adjusting the thickness at the battery cell level, and precisely controls the total power by adjusting the filling gap between battery cells and the number of module battery cells at the module level. This hierarchical adjustment method well solves the technical problem of limited adjustment range of a single parameter, realizes continuous adjustable power configuration, and thus realizes flexible adjustment of the battery pack power to meet the power configuration requirements of different vehicle models.

[0015] Meanwhile, this solution can achieve rapid configuration of different battery capacities under the same platform architecture by establishing a standardized construction mode, avoiding the problem that the traditional solution has to redesigned the entire battery pack for different battery capacity requirements. Secondly, the modular adjustment method greatly improves the generalization rate of parts. Key components such as the box body, copper busbar, and BDU can adopt standardized designs, significantly reducing the mold opening cost and material cost. More importantly, this flexible configuration solution enables a single battery platform to cover the battery capacity requirements of multiple vehicle models, greatly shortening the new product development cycle and enhancing the market response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic flow chart of the construction method of the PACK platform based on the multi-capacity soft-pack CTP module of the present invention.

[0017] Figure 2 FIG. is a logic block diagram of the construction method of the PACK platform based on the multi-capacity soft-pack CTP module of the present invention.

[0018] Figure 3 FIG. is a schematic diagram of the filling gap structure under a single battery cell of the construction method of the PACK platform based on the multi-capacity soft-pack CTP module of the present invention.

[0019] Figure 4 FIG. is a schematic diagram of the filling gap structure under 2k battery cells of the construction method of the PACK platform based on the multi-capacity soft-pack CTP module of the present invention.

[0020] Figure 5 FIG. is a schematic diagram of the filling gap structure under 2k+1 battery cells of the construction method of the PACK platform based on the multi-capacity soft-pack CTP module of the present invention.

[0021] Figure 6 FIG. is a schematic diagram of the structure of the PACK platform based on the multi-capacity soft-pack CTP module of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following is a further detailed description through specific embodiments:

[0023] Embodiment 1

[0024] In the construction method of the PACK platform based on the multi-capacity soft-pack CTP module in this embodiment, by controlling the PACK opening size, adjusting the battery cell thickness and the filling gap between battery cells, and controlling the number of battery cells in the module, the battery pack capacity can be flexibly adjusted to meet the battery capacity configuration requirements of different vehicle models, while reducing the mold opening cost of parts such as the box body, copper busbar, and BDU, and improving the generalization of parts. In this embodiment, the platform construction method is as shown in the attached Figure 1 and includes the following steps:

[0025] S1. Preset the standardized opening dimensions of the battery pack according to the spatial structure of each vehicle model.

[0026] Combined with the attached Figure 2 As shown, in this embodiment, according to the battery pack installation space requirements of mainstream vehicle models in the market, the optimal size spaces required for the energy storage compartment and the high-voltage compartment are solved in the X / Y directions, thereby presetting a series of standardized PACK opening dimensions. These dimensions can cover the battery pack installation requirements of most vehicle models and provide a basis for platform design.

[0027] Specifically, the battery installation space parameters of the top 50 best-selling vehicle models in the market can be collected, including length / width / height, wheelbase, and axle distance, etc. The K-means algorithm is used to cluster the installation space dimensions, identify 3-5 typical space specification clusters, and determine the design boundaries according to regulatory requirements (such as ground clearance) and engineering constraints (such as suspension movement envelope), so as to establish a basic data model.

[0028] Considering parameters such as the thickness of the battery cells, the gap, and the grouping efficiency, a mathematical model is established based on the battery cell specifications. The iterative optimization algorithm is used to solve the size of the energy storage compartment, and the Monte Carlo simulation is used to verify the space utilization rate under different battery cell combinations. A three-dimensional model library of components is established, including BDU, CCS, contactors, etc. The automatic wiring algorithm is used to calculate the size of the high-voltage compartment, and the genetic algorithm is used to optimize the component layout scheme. Finally, a multi-objective optimization function is established, such as min∑|X k -X std |+δ∑(Y k -Y std );where δ is the weight coefficient, 0.7 ≤ δ ≤ 1.2; X k represents the actual result of the k-th objective, and Y k represents the actual result of another related objective; X std represents its standardized value, and Y std represents the statistical standard deviation after its standardization. Three groups of optimal standard sizes are determined through Pareto front analysis, and finally the coverage is verified to ensure that it can cover the requirements of more than 85% of vehicle models. The preset PACK opening dimensions can not only meet the space constraints of most vehicle models, but also ensure the high-density layout of the energy storage compartment and the safety distance requirements of the high-voltage compartment.

[0029] S2. Determine the required battery capacity of the battery pack according to the opening dimensions, calculate the number of battery cells in each battery pack module; and adjust the thickness of each battery cell, and set different battery cell capacities for battery cells with different thicknesses.

[0030] In this embodiment, the number of battery cells is calculated according to the battery capacity, and the rated voltage and voltage range applicable to the vehicle motor are also considered for compatibility to determine the number of battery cells in each battery pack module, including the following sub-steps:

[0031] S2.1. Calculate the required number of series-connected cells β according to the rated voltage of the motor and the voltage range.

[0032] In this embodiment, the number of series connections must meet the motor voltage requirements with a margin. The number of series connections β = total voltage / single-cell voltage, and the result is rounded up. For example, if the total voltage is 400V and the single-cell voltage is 3.7V, then β is rounded up to 108 series, i.e., 108S.

[0033] S2.2. Calculate the total capacity according to the amount of electricity and voltage, and calculate the number of parallel connections α according to the initial single-cell capacity.

[0034] Based on the amount of electricity, the total capacity is deduced inversely. According to α ≥ total capacity / single-cell capacity, the number of parallel-connected cells is calculated. For example, if the required total capacity is 100Ah and the single-cell capacity is 50Ah, then α ≥ 2, i.e., 2P.

[0035] S2.3. Calculate the number of cells n, where n = α * β.

[0036] It also includes adjusting the thickness d of each cell according to the obtained number of cells. cell ,

[0037] In this embodiment, d cell = (∑d 极片或隔膜 × n) × (1 + η 压缩率 ) + d 铝塑膜 ;

[0038] where d 极片或隔膜 is the thickness of the positive electrode plate or negative electrode plate or separator; n is the number of layers of the positive electrode plate or negative electrode plate or separator; η 压缩率 is the expansion rate of the cell during the cycle, usually 3% - 10%; d 铝塑膜 is the thickness of the aluminum-plastic film of the soft-pack cell, usually about 0.1 - 0.2mm (bilateral).

[0039] At the same time, the cell thickness needs to be adapted to the battery pack size to avoid exceeding the limit. The total thickness of the cells is graded, and the cell capacity in different thickness states is designed to form a power mechanism for adjusting the PACK within a wide range, so as to meet the power configuration requirements of different vehicle models.

[0040] S3. Calculate the filling gap between cells according to the number of cells and fill it to the specified position in a set manner to form a CTP module, and set it as a platform component unit. Among them, the filling gap is filled with an elastic material.

[0041] In this embodiment, on the premise of keeping the PACK opening dimension unchanged, the flexible adjustment of the battery capacity is achieved by adjusting the thickness of the battery cells and the filling gap between the battery cells. The filling gap between the battery cells can be filled with low-cost elastic materials (such as MPP microporous polypropylene, silica gel foam) to reduce costs and maintain the stability of the battery pack, ensuring mechanical and thermal safety. Among them, there are two calculation methods for the thickness of the filling gap:

[0042] Method 1: When in the thermal safety single-cell NP (static state of neither charging nor discharging) state, as shown in the appendix Figure 3 Let the number of series / parallel battery cells in a single module of the required PACK system calculated based on the motor parameters and battery capacity of the adapted vehicle model be n, the designed thickness of the battery cell required for the capacity be d cell , the thermal safety required heat insulation space in the single-cell NP state be d fil , the end plate thickness be p, the end plate foam thickness be q (in the warning state), and the size of the battery cell stacking direction left for the energy storage area in the PACK system be L. Inputting the above parameters, let the filling gap thickness space be d2, and the equation can be obtained as

[0043]

[0044] Then, from Equation 1, the derived filling gap thickness d fil is:

[0045]

[0046] Then, according to the calculated thickness, corresponding filling gaps are set between each battery cell, and corresponding filling materials are filled in the filling gaps.

[0047] Method 2: When in a non-single-cell NP state, as shown in the appendix Figure 4 Let the number of series / parallel battery cells in a single module of the required PACK system calculated based on the motor parameters and battery capacity of the adapted vehicle model be n, the designed thickness of the battery cell required for the capacity be d cell , the thermal safety required heat insulation space in the single-cell NP state be d saf , the end plate thickness be p, the end plate foam thickness be q (in the warning state), and the size of the battery cell stacking direction left for the energy storage area in the PACK system be L. Inputting the above parameters, let the filling gap thickness space be d fil , and the equation can be obtained as

[0048]

[0049] Then, from Equation 2, the derived filling gap thickness is d fil is:

[0050]

[0052] Wherein, L is the dimension of the battery cell stacking direction in the energy storage bin area; p is the thickness of the battery cell end plate; q is the thickness of the battery cell end plate foam; d cell is the thickness of the battery cell; n is the number of battery cells; d saf is the thickness of the heat insulation space.

[0053] After obtaining the corresponding filling gap thickness, it is set in the manner shown in the appendix Figure 4 shown. Among them, when the number of battery cells = 2k, it is set in the manner of Figure 4 , that is, a filling gap space is set between each battery cell, and a heat insulation space is added between the second and third battery cells, and between the last two battery cells. When the number of battery cells = 2k - 1, it is set in the manner of Figure 5 , that is, a filling gap space is set between each battery cell, and a heat insulation space is added between the second and third battery cells, and between the n - 1 and n battery cells. An appropriate filling gap is designed between the battery cells to improve the overall rigidity and safety of the battery pack, effectively improve the mechanical performance and thermal stability of the battery pack, and can effectively absorb the expansion and contraction of the battery cells during charging and discharging, while reducing the weight and cost of the battery pack.

[0054] In this embodiment, it also includes completing the calculation of the module dimension chain based on the calculated CTP module data, outputting 3D and 2D data after the warning force design is checked, and completing the design of the CTP module.

[0055] Among them, the module dimension chain is the assembly dimension of all components of the battery module, including the total thickness (including tolerance) after the battery cells are stacked, the fixed position of the end plate / side plate, the heat dissipation gap dimension, and the matching dimension between the housing and the internal components, etc., to ensure that no interference occurs after all components are assembled and meet the tolerance accumulation requirements. After the calculation is completed, the obtained data is checked for warning force, including but not limited to the pressure of the battery cell expansion force on the structural member, the pre-tightening force of the fixing member, the structural strength under the vibration condition, and the stress change caused by thermal deformation, etc. When all the checks are qualified, the complete 3D (three-dimensional) model data and 2D (two-dimensional) engineering drawings available for production are output.

[0056] S4. According to the vehicle model's power demand, select the corresponding number of CTP modules, and combine them in the corresponding combination method to output different power CTP module configuration methods, forming a PACK platform with multiple thicknesses and multiple powers.

[0057] In this embodiment, the combination method includes the number of selected CTP modules, as well as the size and overall shape of the constructed battery pack to meet the installation and power requirements of the battery packs for different vehicle models.

[0058] For the same model, due to the need to be compatible with different groups of objects, high-medium-low configuration products are usually involved to target a wide range of customer groups. Therefore, the mechanical, thermal and electrical boundaries of the space reserved for the PACK system are completely consistent. Unified boxes, BDU (battery distribution unit), thermal management component interfaces, high-voltage / low-voltage wiring harnesses, battery management systems (BMS), voltage / current / temperature sampling devices, fixed brackets and other components can all be unified. Therefore, based on the above method, a series of standardized CTP soft pack battery pack platforms are designed. These platforms can cover different power requirements, achieve step-by-step expansion of power, reduce the mold opening costs of components such as boxes, copper bars, and BDUs, reduce intelligent management costs, and at the same time improve production efficiency and reduce manufacturing costs.

[0059] For multiple models, by combining different numbers of standardized soft-pack CTP modules to form a series of standardized soft-pack CTP modules, it is possible to flexibly build battery packs that meet various power requirements (increasing the power level span gradient), and can be used in different models, thereby greatly reducing the mold opening costs of components such as boxes, copper bars, and BDUs, and reducing the development cycle. At the same time, in this embodiment, a universal electrical interface (such as a flexible plug-in copper bar) is used between soft-pack CTP modules to reduce customized wiring harness design, reduce design costs and development cycles.

[0060] In this embodiment, the designed battery pack is also tested for performance, including power, cycle life, safety, etc. to ensure that the battery pack meets vehicle model requirements and industry standards. At the same time, based on the test results, the design structure of the battery pack is further optimized to improve the performance and reliability of the battery pack.

[0061] In this embodiment, a high degree of flexibility in power configuration is achieved through innovative modular design. Through the precise and controllable key parameters such as PACK opening size, cell thickness and filling gap, combined with the variable number of module cells, the power output can be flexibly adjusted according to the needs of different models, achieving a wide range of adaptability of 15 to 100 kWh, and adapting to the high, medium and low different matching needs of single / multiple models. This design not only meets the needs of different platforms such as sedans, SUVs and commercial vehicles, but also maintains the integrity of the system.

[0062] At the same time, the core components such as the box, copper busbar, BDU, etc. are standardized, saving more than 30% of the mold opening cost, effectively simplifying the production process, and improving production efficiency and quality stability. In particular, the innovative elastic filling material not only effectively absorbs the expansion stress of the battery cell, but also increases the cycle life by 10% to 15%, and reduces the risk of thermal safety runaway by more than 50%.

[0063] Moreover, based on a preset diversified construction mechanism, battery packs with different power can be quickly developed, shortening the development cycle of the battery packs for new vehicle models by 40% - 50%. This not only ensures the rapid iteration ability of the product but also maintains the reliability and safety of the system, providing strong support for the diversified development of the electric vehicle platform.

[0064] Embodiment 2

[0065] In this embodiment, a PACK platform based on a multi-power soft-pack CTP module is provided, which is applied to the platform construction method in Embodiment 1. As shown in the appendix Figure 6 , it includes a vehicle power demand unit, multiple standardized CTP module units, a configuration unit, an early warning unit, and an output unit.

[0066] The vehicle power demand unit is used to obtain the power and model required by the vehicle. The standardized CTP module unit is used to construct multiple standardized CTP modules to flexibly construct battery packs that meet various power requirements. The standardized CTP module unit includes a slotting module, a quantity setting module, a thickness adjustment module, and a battery cell combination module.

[0067] The slotting module is used to preset the slotting size. According to the installation space requirements of the battery packs of mainstream vehicle models in the market, the optimal size space required for the energy storage bin and the high-voltage bin is solved in the X / Y directions, thereby presetting a series of standardized PACK slotting sizes. The quantity setting module is used to set the number of battery cells to ensure that the power of the battery pack meets the vehicle model requirements while maintaining the compactness and efficiency of the module. The thickness adjustment module is used to adjust the thickness of each battery cell. According to the PACK slotting size and the required power, a suitable battery cell thickness is selected to balance the energy density, safety, and cost-effectiveness. The battery cell combination module is used to combine the battery cells into CTP modules in a set manner to form a series of standardized CTP modules, so that these modules have the same size, structure, and performance parameters and can be used interchangeably among different vehicle models.

[0068] The configuration unit is used to configure the battery pack according to the corresponding configuration method based on the power required by the vehicle. According to the power demand of the vehicle model for the battery pack, the number of required CTP modules is determined. By combining different numbers of standardized CTP modules, battery packs that meet various power requirements are constructed. The early warning unit is used to perform an early warning force check on the configured battery pack to ensure the safety and stability of the battery pack while meeting the requirements. The output unit is used to output the corresponding 3D and 2D data of the configured battery pack structure, such as 3D models in STEP / IGES format and 2D engineering drawings in DWG / DXF format, including manufacturing information such as materials, tolerances, and process requirements.

[0069] In this embodiment, the standardized CTP module design is adopted, which can significantly reduce the mold opening costs of components such as the box body, copper busbars, and BDU. At the same time, the standardized design simplifies the production process, improves production efficiency and quality stability, further reduces production costs, makes the construction of the battery pack more flexible and versatile, can meet the diverse power requirements of different vehicle models for the battery pack, and promotes the rapid development of the new energy vehicle industry.

[0070] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solutions are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like described in the specification can be used to interpret the content of the claims.

Claims

1. A method for constructing a PACK platform based on a multi-capacity soft package CTP module, characterized in that: The following steps are involved: Step 1: preset standardized battery pack opening dimensions according to the spatial structure of each vehicle model; Step 2: Determine the amount of electricity required for the battery pack according to the size of the opening, calculate the number of cells in each battery pack module, and adjust the thickness of each cell to set different cell capacities for cells of different thicknesses; Step 3, calculating the filling gap between the cells according to the number of cells, and filling them to the specified position according to the set method to form a CTP module, and setting it as a platform component unit; Step 4: Select the corresponding number of CTP modules according to the power requirements of the vehicle model, and combine them in the corresponding combination method to output CTP module configurations of different power levels to form a PACK platform with multiple thicknesses and multiple power levels.

2. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 1, characterized in that: In step 2, the number of cells is calculated based on the amount of power, the rated voltage of the vehicle motor and the voltage range, including the following sub-steps: Step 2.1, calculate the required number of cells in series β according to the rated voltage and voltage range of the motor; Step 2.2, calculate the total capacity according to the power size and voltage, and calculate the parallel quantity α according to the initial single cell capacity; Step 2.3, calculate the number of battery cells n, n = α*β.

3. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 2, characterized in that: It also includes adjusting the thickness d of each cell according to the number of cells obtained. cell , d cell =(∑d 极片或隔膜 ×n)×(1+η 压缩率 )+d 铝塑膜 ; Among them, d 极片或隔膜 is the thickness of the positive electrode sheet, negative electrode sheet or separator; n is the number of layers of the positive electrode sheet, negative electrode sheet or separator; η 压缩率 is the expansion rate of the battery cell during the cycle, which is 3% to 10%; d 铝塑膜 The thickness of the aluminum-plastic film of the soft-pack battery is 0.1 to 0.2 mm.

4. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 1, characterized in that: In step 3, there are two ways to calculate the filling gap thickness: Method 1: When in single cell NP state, the gap thickness d is filled fil for Method 2: When the battery is not in the single-cell NP state, the gap thickness is d fil for Where, L is the dimension of the cell stacking direction in the energy bin area; p is the thickness of the cell end plate; q is the thickness of the cell end plate foam; d cell is the thickness of the battery cell; n is the number of battery cells; d saf is the thickness of the insulation space.

5. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 1, characterized in that: In step 3, the gap is filled with an elastic material.

6. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 1, characterized in that: In step 1, based on the battery pack installation space requirements of mainstream models, the required dimensions of the energy compartment and high-voltage compartment are solved in the X / Y direction, and a series of standardized PACK opening dimensions are preset.

7. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 1, characterized in that: In step 3, it also includes completing the module dimension chain calculation based on the calculated CTP module data, outputting 3D and 2D data after early warning force design verification, and completing the design of the CTP module.

8. The method for constructing a PACK platform based on a multi-capacity soft package CTP module according to claim 1, characterized in that: The combination includes the number, size and shape of CTP modules.

9. The PACK platform based on multi-capacity soft pack CTP module is characterized by: The platform construction method applied to any one of claims 1-8 comprises a vehicle power demand unit, a plurality of standardized CTP module units, a configuration unit, an early warning unit and an output unit; the vehicle power demand unit is used to obtain the power and model required by the vehicle; the standardized CTP module unit is used to construct a plurality of standardized CTP modules; the configuration unit is used to configure the battery pack by selecting a corresponding configuration method according to the power required by the vehicle; the early warning unit is used to perform early warning force verification on the configured battery pack; the output unit is used to output corresponding 3D and 2D data of the configured battery pack structure.

10. The PACK platform based on the multi-capacity soft pack CTP module according to claim 9, characterized in that: The standardized CTP module unit includes an opening module, a quantity setting module, a thickness adjustment module and a battery cell combination module; the opening module is used to preset the opening size; the quantity setting module is used to set the number of battery cells; the thickness adjustment module is used to adjust the thickness of each battery cell; the battery cell combination module is used to combine the battery cells into a CTP module according to the set method.

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