HLM-202A-HUNAN HAILI CHEMICALINDUSTRY CO.LTD

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HLM-202A

This specification describes the positive electrode material of 202A lithium-ion battery produced by Hunan Haili Lithium Technology Co., Ltd. (hereinafter referred to as Haili Lithium), with the molecular formula LiMn2O4.

classification：

Lithium battery

keyword：

haili

annex：

DESCRIPTION

　　1 Introduction

　　2. Model: HLM-202A

　　3. Scope of application of the product

　　Suitable for all kinds of high-end consumer electronic products.

　　4. Product Features

　　The production of this product adopts high-temperature solid-state sintering and optimizes the sintering curve, so that the material has the advantages of high specific capacity, stable performance and high cost performance.

　　(1) The product particles are in complete regular spinel phase.

　　(2) The specific capacity of the product is high. The 1C gram capacity at room temperature is greater than 118mAh/g, and the capacity retention rate is greater than 80% after 200 cycles.

　　(3) There is no impurity phase in X-ray diffraction of the product.

　　5. Physical indicators

　　5.1. Physical and chemical indicators

product name	Lithium manganese oxide			model		HLM-202A
Chemical Composition and Physical Indicators
Analysis Project			standard value		typical value		testing method
Mn，%			≥58.0		59.51		volumetric method
Li，%			4.0±0.2		4.06		AAS
K，%			≤0.05		0.0036		AAS
That,%			≤0.35		0.2336		AAS
Fe，%			≤0.02		0.01		AAS
That,%			≤0.05		0.02		AAS
With,%			≤0.01		0.0002		AAS
SO₄^2-，%			≤1.5		1.24		gravimetric method
H2O, %			≤0.08		0.05		Karl Fischer method
Specific surface, m ² /g			≤1.2		0.69		Specific surface tester
Magnetic substance, ppb			≤6000		2559		ICP
Tap density, g/ ^cm3			≥1.9		2.10		Tap Density Meter
Granularity (um) (can be adjusted according to customer requirements)		D10	≥2.0		3.75		Malvern particle size analyzer
		D50	15～20		16.6
		D90	≤40		33.1

5.2. Basic electrical performance indicators

project	standard value	typical value	testing method
Compacted density (g/cm ³ )	≥2.8	2.85	Reference data provided by downstream customers
Button power 1C discharge specific capacity (mAh/g)	≥118	119	Blue Electric Battery Tester
200-cycle cycle capacity retention at room temperature (1C charge and discharge)	≥80	82	Blue Electric Battery Tester

(Remarks: The relevant electrical performance data in this table are provided by the battery manufacturer for reference only, and the quality of the product is subject to the quality inspection sheet.)

5.3. Particle size distribution

5.4 Electron microscope image

　　6. Packaging and storage conditions

　　6.1. Packing method: Inner aluminum foil bag, vacuum packaging, outer carton, 25kg/box.

　　6.2. Requirements for stacking layers: carton packaging ≤ 3 layers.

　　6.3. Label style: Haili Lithium Battery shipment label is the default, and the customer's special requirements can be implemented according to the label style provided by the customer.

　　6.4. Storage conditions: Keep sealed and avoid direct sunlight. The recommended storage temperature is ≤37°C and the humidity is ≤50%RH. The shelf life is 1 year. If the product exceeds the shelf life, it should be inspected by our company and re-evaluated whether it can be used normally.

　　6.5. Under the condition of unsealing, strictly control the storage humidity to ≤30%RH, and use it as soon as possible.

　　7. Precautions for transportation

　　When loading, do not place heavy objects on top of the cartons to prevent deformation of the cartons; prevent extrusion and sun and rain; use vehicles, trains, ships, planes and other vehicles for transportation.

　　8. Suggestions for processing and use

　　Positive electrode ratio: lithium manganate 94.5%~96.0%, conductive agent 1.0%~2.5%, PVDF 2.0%~3.0%. It is recommended to use PVDF with a molecular weight greater than 1 million as the binder. If the binder is made by the suspension method, the dosage can be adjusted to 1.5% to 2.0%.

　　Suggested negative electrode excess ratio: 6% to 10%.

　　It is recommended to use compaction: 2.80～2.90g/cm3.

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