HLY-NM-HUNAN HAILI CHEMICALINDUSTRY CO.LTD

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HLY-NM

This specification describes the cobalt-free nickel-manganese binary lithium-ion battery cathode material produced by Hunan Haili Lithium Technology Co., Ltd. (hereinafter referred to as Haili Lithium).

classification：

Lithium battery

keyword：

haili

annex：

DESCRIPTION

1 Introduction

2. Model: HLY-NM

3. Scope of application of the product

This product has a wide range of applications. The capacity type product can be applied to various 3C digital electronic products; the power type product can be used in low-speed vehicles, unmanned aerial vehicles and pure electric vehicles.

4. Product Features

The production of this product adopts a special co-precipitation method to synthesize a small particle size nickel-manganese binary precursor, and adopts a segmented atmosphere sintering technology. The synthesized bare material has a stable structure and excellent electrochemical performance, while taking into account high specific capacity and cycle stability. , has the characteristics of high cost performance.

(1) The product particles have a complete α-NaFeO ₂ layered crystal structure, the X-ray diffraction pattern has no miscellaneous peaks, the particle size is normally distributed, and the material processing performance is superior.

(2) Eliminate the path dependence of layered cathode materials on cobalt resources, and improve the strategic autonomy of raw material supply and demand.

(3) Bare material products have excellent electrochemical performance. The 1C capacity (cut-off voltage 4.3V) is greater than 170mAh/g at room temperature, and the capacity retention rate is greater than 88.8% after 100 cycles of 1C cycle. Using special precursor doping technology or unique modification methods, the capacity retention rate can be further increased to more than 90%, and the charge cut-off voltage can be increased to 4.4V, further improving the energy density of the system.

(4) The product has a wide range of uses, which can be used to prepare secondary balls and to synthesize single crystals.

(5) Through simple physical compounding with low-capacity products such as lithium manganate, on the one hand, it fills the particle gap and improves processing performance; market competitiveness, and then broaden its application space, with high cost performance.

5. Physical indicators

5.1. Physical and chemical indicators

product name		binary material	model	HLY-NM
Chemical Composition and Physical Indicators
Analysis Project			typical value	testing method
Ni+Co+ Mn，%		58～63	61.50	volumetric method
Li，%		7.2±0.3	7.03	AAS
K， ppm		≤100	3	AAS
Na，ppm		≤500	38	AAS
Fe，ppm		≤100	9	AAS
SO₄^2-，%		≤0.5	0.12	gravimetric method
Granularity (um) (can be adjusted according to customer requirements)	D ₁₀	≥3.0	4.1	Malvern particle size analyzer
	D₅₀	5.0～12.0	6.3
	D ₉₀	≤30	9.81

5.2 Basic electrical performance indicators

project		standard value	typical value	testing method
granularity （µｍ）	D10	≥3.0	4.1	Malvern particle size analyzer
	D50	5.0～12.0	6.3	Malvern particle size analyzer
	D90	≤30.0	9.81	Malvern particle size analyzer
Button power 1C discharge specific capacity (mAh/g)		≥155	170	Blue Electric Battery Tester
0.1C first charge and discharge efficiency (%)		≥88%	92	Blue Electric Battery Tester
100-cycle cycle capacity retention at room temperature (1C charge/discharge/deduction)		≥80	88.8	Blue Electric Battery Tester

5.3 Particle size distribution

5.4 SEM 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: the default Haili lithium battery shipping label, if the customer has special requirements, it 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 20±10°C and the humidity is ≤50%RH. The shelf life is 2 years. 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 carton to prevent deformation of the carton; prevent extrusion and sun and rain; can be transported by vehicles, trains, ships, planes and other means of transportation.

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