The Ministry of Industry and Information Technology will strengthen the management of the lithium-ion battery industry and guide enterprises to reduce the number of projects that simply expand production capacity.

Publisher:huanguuLatest update time:2021-11-18 Source: 工业和信息化部Author: Lemontree Reading articles on mobile phones Scan QR code
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In order to further strengthen the management of the lithium-ion battery industry and promote the transformation, upgrading and technological progress of the industry, the Ministry of Industry and Information Technology (Department of Electronic Information) organized the revision of the "Standard Conditions for the Lithium-ion Battery Industry (2021 Edition)" (Draft for Comments) and the "Management Measures for Standard Announcements of the Lithium-ion Battery Industry (2021 Edition)" (Draft for Comments), and now solicit public opinions.

Among them, the "Standardized Conditions for the Lithium-ion Battery Industry (2021 Edition)" (draft for comments) proposes to guide enterprises to reduce manufacturing projects that simply expand production capacity, strengthen technological innovation, improve product quality, and reduce production costs.

The following is the original text

Lithium-ion battery industry standard conditions (2021 version) (Draft for comments)

In order to strengthen the management of the lithium-ion battery industry, guide the industry to accelerate transformation and upgrading and structural adjustment, and promote the healthy development of my country's lithium-ion battery industry, this standard condition is formulated in accordance with relevant national laws, regulations and industrial policies, and in accordance with the principles of optimizing layout, standardizing order, ensuring safety, improving quality, encouraging innovation, and classified guidance. This standard condition is a guiding document to encourage and guide the technological progress and standardized development of the industry, and does not have the pre-emptive and mandatory nature of administrative approval.

1. Industrial layout and project establishment

(I) Lithium-ion battery enterprises and projects should comply with the national laws and regulations on resource development and utilization, ecological and environmental protection, energy conservation management, and safe production, comply with national industrial policies and relevant industrial planning and layout requirements, comply with local land space planning and special ecological and environmental protection planning requirements, and meet the "three lines and one list" ecological and environmental zoning control requirements.

(II) Lithium-ion batteries and supporting projects shall not be built in permanent basic farmland, ecological protection red lines, and areas where industrial enterprises are prohibited by national laws, regulations, and rules. Existing enterprises in the above-mentioned areas shall be demolished and closed in accordance with laws and regulations, or their scale shall be strictly controlled and gradually relocated.

(3) Guide enterprises to reduce manufacturing projects that simply expand production capacity, strengthen technological innovation, improve product quality, and reduce production costs.

2. Process technology and quality management

(I) The enterprise shall meet the following conditions: legally registered and established in the territory of the People's Republic of China with independent legal person status; have independent production, sales and service capabilities for products related to the lithium-ion battery industry; R&D funds shall not be less than 3% of the enterprise's main business income in the current year, and enterprises are encouraged to obtain qualifications of independent R&D institutions, technology centers or high-tech enterprises at or above the provincial level; main products shall have technical invention patents; actual output in the previous year at the time of application shall not be less than 50% of the actual production capacity in the current year.

(II) Enterprises should adopt production processes and equipment that are technologically advanced, energy-saving, environmentally friendly, safe, stable, and highly intelligent, and meet the following requirements:

1. Lithium-ion battery companies should be able to monitor the uniformity of electrode coating, and the measurement accuracy of electrode coating thickness and length should be no less than 2μm and 1mm respectively; they should have electrode drying process technology, and the moisture content control accuracy should be no less than 10ppm.

2. Lithium-ion battery companies should be able to control environmental conditions such as temperature, humidity and cleanliness during the injection process; they should have the ability to conduct online internal short-circuit high-voltage testing (HI-POT) after battery assembly.

3. Lithium-ion battery pack manufacturers should have the ability to evaluate the consistency of single-cell open-circuit voltage and internal resistance, with measurement accuracy not less than 1mV and 1mΩ respectively; they should have the ability to conduct online detection of battery pack protection board functions.

(III) Enterprises shall establish a quality management system, which shall at least include quality control processes, control procedures for preventing and detecting internal short circuit faults, test data and quality records, and control measures for cells or batteries that do not comply with the UN38.3 test. Enterprises are encouraged to obtain third-party certification, set up quality inspection departments, and equip them with full-time inspection personnel.

(IV) Enterprises should encode lithium-ion battery products and establish a full life cycle traceability system in accordance with relevant policies and standards, and enterprises are encouraged to apply active traceability technology.

3. Product performance

1. Batteries and batteries

1. Energy density of consumer batteries ≥260Wh/kg, energy density of battery packs ≥200Wh/kg, and volume energy density of polymer batteries ≥600Wh/L. Cycle life ≥600 times and capacity retention rate ≥80%.

2. Power batteries are divided into energy type and power type. The energy density of energy type batteries is ≥180Wh/kg, and the energy density of battery packs is ≥120Wh/kg. The power density of power type batteries is ≥700W/kg, and the power density of battery packs is ≥500W/kg. The cycle life is ≥1000 times and the capacity retention rate is ≥80%.

3. Energy density of energy storage batteries ≥145Wh/kg, energy density of battery pack ≥110Wh/kg. Cycle life ≥5000 times and capacity retention rate ≥80%.

(II) Cathode Materials

The specific capacity of lithium iron phosphate is ≥150Ah/kg; the specific capacity of ternary materials is ≥175Ah/kg; the specific capacity of lithium cobalt oxide is ≥170Ah/kg; the specific capacity of lithium manganese oxide is ≥115Ah/kg; the performance indicators of other positive electrode materials can refer to the above requirements.

(III) Negative electrode materials

Carbon (graphite) specific capacity ≥ 335Ah/kg; amorphous carbon specific capacity ≥ 250Ah/kg; silicon carbon specific capacity ≥ 420Ah/kg; other negative electrode material performance indicators can refer to the above requirements.

(IV) Diaphragm

1. Dry uniaxial tensile strength: longitudinal tensile strength ≥110MPa, transverse tensile strength ≥10MPa, puncture strength ≥0.133N/μm.

2. Dry biaxial stretching: longitudinal tensile strength ≥100MPa, transverse tensile strength ≥25MPa, puncture strength ≥0.133N/μm.

3. Wet biaxial stretching: longitudinal tensile strength ≥100MPa, transverse tensile strength ≥60MPa, puncture strength ≥0.204N/μm.

(V) Electrolyte

Water content ≤20ppm, hydrogen fluoride content ≤50ppm, single metal impurity content ≤1ppm.

4. Security and Management

(I) Enterprises shall abide by the "Work Safety Law of the People's Republic of China" and other laws and regulations related to work safety, implement national standards or industry standards to ensure work safety, strictly implement the "three simultaneous" system requirements for safety facilities in construction projects, and no general or above work safety accidents shall occur in the current year and the previous year.

(II) Enterprises should establish and improve a system of responsibility for safe production for all employees and safe production rules and regulations, increase investment and guarantee of funds, materials, technology and personnel for safe production, improve safe production conditions, strengthen the construction of safe production informationization, establish means of product manufacturing safety and quality traceability, strengthen safe production education and training for employees, establish a dual prevention mechanism of safety risk classification management and hidden danger investigation and control, improve the risk prevention and mitigation mechanism, carry out safe production standardization construction and reach level three or above.

(III) Enterprises should formulate emergency response plans and conduct drills regularly, establish two professional accident response teams, namely the process response team and the professional fire brigade, and equip them with personnel and equipment that meet the requirements of relevant national standards and industry standards.

(IV) Lithium-ion battery companies should be able to control electrode burrs during shearing, with a measurement accuracy of no less than 1μm; and have the ability to control electrode alignment during winding or lamination, with a control accuracy of no less than 0.1mm. Positive and negative electrode material companies should be able to control harmful impurities, with a detection accuracy of no less than 10ppb.

(V) The safety of lithium-ion battery products should meet the requirements of mandatory standards such as "Safety Requirements for Lithium-ion Batteries and Battery Packs for Portable Electronic Products" (GB31241), "Safety Technical Specifications for Lithium-ion Batteries and Battery Packs for Stationary Electronic Equipment" (GB40165), and "Safety Requirements for Power Storage Batteries for Electric Vehicles" (GB38031), and be qualified by inspection agencies with corresponding qualifications. The battery management system should have electrical safety protection functions such as preventing overcharging, short circuit, and over-discharge, and ensure the normal use of batteries in complex environments such as high and low temperatures. Enterprises are encouraged to formulate and implement enterprise standards or specifications that are higher than national or industry standards.

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Reference address:The Ministry of Industry and Information Technology will strengthen the management of the lithium-ion battery industry and guide enterprises to reduce the number of projects that simply expand production capacity.

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