锌银电池用水化纤维素膜改性后的性能

Performance of hydrate cellulose membrane for zinc-silver battery after remodeling

讨论了在不同组成的反应液中,反应温度和时间对锌银电池用水化纤维素膜进行改性的影响。对面积电阻、耐电解液的腐蚀能力、吸碱率及保液能力等测试以及实验电池电性能分析,总结了水化纤维素膜的性能。当甲醛浓度为30%,温度为20℃、反应时间为10 min时,改性后水化纤维素膜的各项物理性能比改性前提高近5%,制备的8AhXYZ8型锌银电池的循环寿命增加9次,放电容量、放电电压分别提高约20%和8%。

The remolding of hydrate cellulose membrane for zinc-silver battery in the solution with different composition, temperature and reaction time was discussed. The performanee of hydrate cellulose membrane was summarized by the tests of area resistance, electrolyte corrosion resistance ability, alkali uptake and liquid preserving ability, the electrieal performance analysis of experimental battery. When the formaldehyde content was 30%, the temperature was 20 ℃, the reaction time was 10 min, the physical properties of hydrate cellulose membrane after remolding increased nearly 5% than before remolding, the life of prepared 8 Ah XYZ8 zinc-silver battery increased 9 cycles, the discharge eapaeity and discharge voltage increased about 20% and 8%, respectively.