GB/T 38823-2020 PDF English
US$260.00 · In stock · Download in 9 secondsGB/T 38823-2020: Silicon-carbon Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 38823-2020 | English | 260 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Silicon-carbon
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 38823-2020
GB/T 38823-2020: Silicon-carbon---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT38823-2020
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.050
Q 50
Silicon-carbon
硅炭
Issued on. JUNE 02, 2020
Implemented on. DECEMBER 01, 2020
Issued by. State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 5
4 Classification and code... 5
5 Technical requirements... 6
5.1 Appearance... 6
5.2 Physical and chemical indicators... 6
6 Test methods... 7
6.1 Appearance... 7
6.2 Particle size distribution... 7
6.3 Specific surface area... 7
6.4 Tap density... 7
6.5 Carbon content... 7
6.6 Silicon content... 7
6.7 Compaction density... 7
6.8 Moisture content... 7
6.9 Magnetic impurities... 7
6.10 Content of trace metal elements... 7
6.11 Initial discharge specific capacity and initial coulombic efficiency... 7
6.12 Regulated substances... 7
7 Inspection rules... 8
7.1 Sampling method... 8
7.2 Inspection classification... 8
7.3 Acceptance rules... 9
8 Packaging, marking, storage, and transportation... 9
8.1 Packaging... 9
8.2 Marking... 9
8.3 Storage and transportation... 10
Appendix A (Normative) Determination method of carbon content... 11
Appendix B (Normative) Determination method of silicon content... 14
Appendix C (Normative) Determination method for the content of trace metal elements
... 17
Appendix D (Normative) Determination method of initial discharge specific capacity
and initial coulombic efficiency... 20
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of National Technical Committee 183 on
Steel of Standardization Administration of China (SAC/TC 183).
Drafting organizations of this Standard. BTR New Material Group Co., Ltd., Huizhou
Dingyuan New Energy Technology Co., Ltd., China Automotive Battery Research
Institute Co., Ltd., Shenzhen Sinuo Industrial Development Co., Ltd., China
Metallurgical Information and Standardization Institute.
Main drafters of this Standard. He Xueqin, He Peng, Chen Nanmin, Ren Jianguo, Yue
Min, Huang Youyuan, Wang Yuhui, Guo Eming, Zhang Qinglai, Mao Aiping, Yang
Lianbo, Zheng Jingxu, Bao Haiyou, Yu Zhanglong, Yang Juanyu, Zhao Shangqian.
Silicon-carbon
1 Scope
This Standard specifies the terms and definitions, classification and code, technical
requirements, test methods, inspection rules, packaging, marking, transportation, and
storage of silicon-carbon.
This Standard applies to all kinds of silicon-carbon anode materials for lithium-ion
batteries.
2 Normative references
The following documents are indispensable for the application of this document. For
the dated references, only the editions with the dates indicated are applicable to this
document. For the undated references, the latest edition (including all the amendments)
are applicable to this document.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1.Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes
(apply to inspection of process stability)
GB/T 3782 Acetylene black
GB/T 4369 Lithium
GB/T 5187 Copper and copper alloy foil
GB/T 6388 Transport package shipping mark
3 Terms and definitions
The following term and definition applies to this document.
3.1
Silicon-carbon
Composite powder material composed of silicon material and carbon material. The
synergistic effect of silicon-carbon and cathode materials in a certain system can realize
multiple charging and discharging of lithium-ion batteries.
4 Classification and code
The products are classified according to their initial discharge specific capacity; mainly
divided into five categories.
5 Technical requirements
5.1 Appearance
Gray-black powder material, without agglomeration.
5.2 Physical and chemical indicators
The physical and chemical indicators of silicon-carbon shall meet the requirements in
Table 1.
6 Test methods
6.1 Appearance
Visually observe under natural light conditions.
6.2 Particle size distribution
Determine according to GB/T 19077.Test conditions. Refractive index 2.61.
6.3 Specific surface area
Determine according to GB/T 19587.
6.4 Tap density
Determine according to GB/T 24533.
6.8 Moisture content
Determine according to GB/T 24533.
6.9 Magnetic impurities
Determine according to GB/T 33827.
6.10 Content of trace metal elements
Determine according to Appendix C.
6.11 Initial discharge specific capacity and initial coulombic efficiency
Determine according to Appendix D.
6.12 Regulated substances
Determine according to GB/T 26125.
7 Inspection rules
7.1 Sampling method
7.1.1 Sampling
Silicon-carbon is sampled according to GB/T 13732 “General rules for sampling
inspection of bulk materials with uniform size”.
7.1.2 Sample label
After the sample is placed in the plastic sample jar, a label shall be attached to the outer
wall. The label shall include the following.
7.1.3 Storage of samples
The samples shall be sealed and stored in an environment protected from bag break,
rain and moisture. The effective storage period of spare samples is 12 months.
7.2 Inspection classification
7.3 Acceptance rules
7.3.1 Products that meet the requirements of technical indicators in Table 1 are
conformity products. If there is 1 indicator that fails to meet the requirements of the
standard, double number of samples shall be taken from the sampling bag of the same
lot of products, to re-inspect the nonconformity item. If all the re-inspections are
conformity, it will be judged as conformity. If one item is nonconformity, it will be
judged as nonconformity.
8 Packaging, marking, storage, and transportation
8.1 Packaging
8.1.1 The packaging of the product shall comply with the provisions of GB/T 191.The
net weight shall be negotiated by both the supplier and the purchaser.
8.2 Marking
The marking shall comply with the provisions of GB/T 6388.It shall generally include
the following contents. It can also be marked according to customer needs.
8.3 Storage and transportation
8.3.1 Products shall be stored in a ventilated and dry warehouse.
8.3.2 The stacking of products shall be neat and clean. Marks such as production lot
numbers shall be clearly identifiable.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 38823-2020 be delivered?Answer: The full copy PDF of English version of GB/T 38823-2020 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 38823-2020_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 38823-2020_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 38823-2020 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB/T 38823-2020?A step-by-step guide to download PDF of GB/T 38823-2020_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 38823-2020".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|