+

HLM-202P

This specification describes the cathode material of 202P lithium-ion batteries 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：

Contact Us

DESCRIPTION

　　1 Introduction

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

　　2. Model: HLM-202P

　　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, the cycle is 300 cycles, and the capacity retention rate is greater than 80%.

　　(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-202P

Chemical Composition and Physical Indicators

Analysis Project

standard value

typical value

testing method

Mn，%

≥58.0

58.97

volumetric method

Li，%

4.0±0.2

4.05

AAS

K，%

≤0.05

0.0056

AAS

That,%

≤0.35

0.2227

AAS

Fe，%

≤0.02

0.01

AAS

That,%

≤0.05

0.02

AAS

With,%

≤0.01

0.0001

AAS

SO42-，%

≤1.5

1.20

gravimetric method

H2O, %

≤0.08

0.05

Karl Fischer method

Specific surface, m 2 /g

≤1.2

0.74

Specific surface tester

Magnetic substance, ppb

≤3500

3155

ICP

Tap density, g/ cm3

≥1.9

2.24

Tap Density Meter

Granularity (um)

(can be adjusted according to customer requirements)

D10

≥2.0

4.14

Malvern particle size analyzer

D50

15～20

16.3

D90

≤40

32.1

 

 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

1C first charge and discharge efficiency (%)

≥90

91

Blue Electric Battery Tester

300-cycle cycle capacity retention at room temperature (1C charge and discharge)

≥80

83

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% to 96.0%, conductive agent 1.0% to 2.5%, PVDF 2.0% to 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.

Recommended