Design of low-temperature battery design of military equipment:

1.Case of low temperature battery

* Composition: 103450-2S1P

* Nominal voltage: 7.4 volts

* Nominal capacity: 1800mAh

* : Charging temperature 0 ℃ ~ + 45 ℃

* Discharge temperature: - 40 ℃ ~ + 60 ℃

* Low temperature performance: full electricity at low temperature and 40 ℃ for 16 h, 0.2 C retention capacity of 80% or higher

2.Cold storage monitoring system low temperature lithium battery

Composition: PL903563-1S2P.

Nominal voltage: 3.7 volts

Nominal capacity: 4200 mAh

Charging temperature 0 ℃ ~ + 45 ℃

Discharge temperature: - 40 ℃ ~ + 60 ℃

Low temperature performance: full electricity at low temperature and 40 ℃ for 16 h, 0.2 C retention capacity of 75% or higher

Design of lithium ion battery for high temperature instrument:

1. High Temperature Battery Design (LA2392112 3.7V 2000mAh 7.4Wh）

Market Demand
Digital in-car or outdoor products using li-ion battery requires battery to work under high temp as environment temperature will raise to 75℃ in hot summer. Large Power has designed and developed the special high temp lithium ion battery.
Battery Design Requirement
·Li-Polymer design with size adjustable;
·Work under temp from 10℃ to 75℃;
·Cycle life 400times with capacity above 80%;
·2000mAh @ 3.7V;
·LiCoO material.
Technical Design
·Electrochemistry:Adopting roasting technology mixing with metals for anode material, it improves the crystal texture stability of LiCoO under high temperature and decrease its oxidability which prevents chemical reaction between electrode and electrolyte. Heat-resistant electrolyte increases the burning point and slows down reaction under high temperature.
Mechanism: Al-plastic film
Reliability Test
Comply with GB/T31241-2014 Safety Standard of Lithium ion Battery and Battery Packs for Portable Products, and UL2642
 

2. High Temperature Lithium ion Battery for Tyre Pressure Monitoring System

·Battery cell：PL802035
·Battery size：8.0*20.5*37mm
·Nominal voltage：3.7V
·Nominal voltage：480mAh
·Working voltage：3~4.2V
·Charging current：240mA
·Discharging current：240mA
·Charging temperature：0~70℃
·Discharging temperature：-20℃~+80℃
·Protections: Balancing,over charge, over discharge, short circuit, over heat
·High Temp Performance: Stored 24h after fully charge, capacity remaning rate is above 80%, capacity recovering rate above 85%