48V锂电池发展现状
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Progressive Development for 48V ESS
Xu JM Manager/Leader of Hybrid EVS Product Line
1 2 3 4 CATL Introduction
48V Hybrid EVS Planning Product Introduction Pack Level Simulation
Outline
能量密度
100
200
300 180Wh/kg
HEV
180Wh/kg
210Wh/kg
BEV
PHEV
NCM/Graphite LFP/Graphite
NCM/Si-Gr
PHEV 245Wh/kg
300Wh/kg
165Wh/kg P/E=12
400
FC 4C 185Wh/kg
FC 4C 240Wh/kg
104Wh/kg P/E=50
128Wh/kg
P/E=50 200Wh/kg
P/E=10
160Wh/kg
150Wh/kg
140Wh/kg
124Wh/kg
FC 3C
111Wh/kg
FC 3C 126Wh/kg
230Wh/kg
PHEV
1. CATL Cell Design Introduction
Abuse safety
Operational safety
Design safety Manufacture safety
Safety T echnology
Regulations and Requirements
T esting & Validation
Whole Life cycle 1. CATL Safety Design Introduction
2016
2017 2018 2020
15~30A h 48V PE=50 Air cooling Height:105mm
Charge power:＞18kW Discharge power:＞18kW Cold Cranking:＞9kW
25~40A h 48V PE=60 A ir/liquid cooling Height:100mm
Charge power:＞30kW Discharge power:＞30kW Cold Cranking:＞15kW
2019
6~10Ah
15~30Ah
25~40Ah
10A h 48V PE=50 A ir cooling
Charge power:＞18kW Discharge power:＞18kW Cold Cranking:＞9kW
Gen Ⅰ
Start/Stop
Boost acceleration
Gen Ⅱ
Start/Stop
Boost acceleration Electrification
Gen Ⅲ
Start/Stop
Boost acceleration Electrification Drive main motor
2. 48 EVS Development Planning
3. Pack Performance Introduction
No. Performance Requirement CA TL 48V EVS
1 Standard voltage/V 48V
2 Operation voltage range/V 35-53
3 Available energy/Wh ≥175
4 Max discharge power( HPPC @10s,30%SOC,BOL)/kW 19.7
5 Max charge power( HPPC @10s,70%SOC,BOL) /kW 18.5
6 Vibrate protection QC /T 743-2006 GB/T 31467.3-2015
7 Fault diagnosis UDS protocol
8 Balancing Passive balancing
9 Swing window 30-70% SOC
Cell Specifications
10A h cell
Capacity (Ah, 1C @25℃) 10 Cathode active material NCM Anode active material
Carbon Dimension (without terminal)
Thickness (mm)
17.5 Width (mm) 120 Height (mm)
85
Continuous operation voltage
(V, Upper limit/Normal/Lower limit)
4.1/3.6/2.7
Nominal energy (Wh, 1C-rate @25℃) 36 Specific power (W/kg, @50%SOC, 25℃, HPPC) 4484 10s Peak discharge power (W, @50%SOC,25℃) 1104 10s Peak charge power (W, @50%SOC,25℃) 1374
GBT31485-2015
Modification of VDA standard size
Easy for modulation
Space for Power/energy update
3. 48V NCM Cell Development
A buse Test
EUCA R Level
Nail Penetration Level 4 Short-circuit Level 2 Over-charge Level 2 Over-discharge Level 2 Crush Level 2 Drop
Level 0